Abstract

Alloy core/shell CdxZn1-xS/ZnS quantum dots (QDs) are emerging as robust candidates for light-emitting diodes (LEDs), however the emission range of the current CdxZn1-xS/ZnS is quite limited, ranging from 390 to 470 nm. It still remains a challenging task to construct white LEDs based on current CdxZn1-xS/ZnS system. Here, a versatile ZnSe with a moderate band gap is introduced onto the Cd0.1Zn0.9S core. The ZnSe shell, on one hand, can passivate the core surface which leads to bright emissions. On the other hand, it is essential in extending the emission to red region so that the emission wavelengths of Cd0.1Zn0.9S/ZnS and Cd0.1Zn0.9S/ZnSe QDs can cover the whole visible region, which is very important for white LED applications. Two- and four-hump QD-based LEDs are computationally and experimentally investigated. Results show that four-hump quantum dot light-emitting diodes (QLED) have better performances than the two-hump one, in the luminous and the vision properties. The fabricated white LEDs (WLEDs) based on Cd0.1Zn0.9S/ZnS and Cd0.1Zn0.9S/ZnSe QDs exhibits a scotopic/photopic ratio (S/P) ratio as high as 2.52, which exceeds the current limit of 2.50 by common lighting technologies, a color rendering index of 90.3, a luminous efficacy of optical radiation of 460.78 lumen per unit optical power, and a correlated color temperature of 5454 K. These results suggest that CdxZn1-xS/ZnS and CdxZn1-xS/ZnSe quantum dots serving as emitters hold great promise for the next-generation white light source with better S/P ratio.

© 2017 Optical Society of America

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References

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2017 (1)

W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

2016 (3)

A. Yakoubi, T. B. Chaabane, A. Aboulaich, R. Mahiou, L. Balan, G. Medjahdi, and R. Schneider, “Aqueous synthesis of Cu-doped CdZnS quantum dots with controlled and efficient photoluminescence,” J. Lumin. 175, 193–202 (2016).
[Crossref]

K. V. Vokhmintcev, P. S. Samokhvalov, and I. Nabiev, “Charge transfer and separation in photoexcited quantum dot-based systems,” Nano Today 11(2), 189–211 (2016).
[Crossref]

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

2015 (5)

J. H. Oh, H. Kang, M. Ko, and Y. R. Do, “Analysis of wide color gamut of green/red bilayered freestanding phosphor film-capped white LEDs for LCD backlight,” Opt. Express 23(15), A791–A804 (2015).
[Crossref] [PubMed]

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

T. T. Xuan, J. Q. Liu, R. J. Xie, H. L. Li, and Z. Sun, “Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition,” Chem. Mater. 27(4), 1187–1193 (2015).
[Crossref]

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
[Crossref]

B. Zhao, Y. Yao, M. Gao, K. Sun, J. Zhang, and W. Li, “Doped quantum dot@silica nanocomposites for white light-emitting diodes,” Nanoscale 7(41), 17231–17236 (2015).
[Crossref] [PubMed]

2014 (4)

V. K. Sharma, B. Guzelturk, T. Erdem, Y. Kelestemur, and H. V. Demir, “Tunable white-light-emitting Mn-doped ZnSe nanocrystals,” ACS Appl. Mater. Interfaces 6(5), 3654–3660 (2014).
[Crossref] [PubMed]

P. H. Chuang, C. C. Lin, and R. S. Liu, “Emission-tunable CuInS2/ZnS quantum dots: structure, optical properties, and application in white light-emitting diodes with high color rendering index,” ACS Appl. Mater. Interfaces 6(17), 15379–15387 (2014).
[Crossref] [PubMed]

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

2013 (4)

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

T. Erdem and H. V. Demir, “Color science of nanocrystal quantum dots for lighting and displays,” Nanophotonics 2(1), 57–81 (2013).
[Crossref]

B. Chen, H. Zhong, M. Wang, R. Liu, and B. Zou, “Integration of CuInS2-based nanocrystals for high efficiency and high colour rendering white light-emitting diodes,” Nanoscale 5(8), 3514–3519 (2013).
[Crossref] [PubMed]

Z. Q. Guo, T. M. Shih, Y. J. Lu, and Y. L. Gao, “Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes,” IEEE Photonics J. 5(4), 8200409 (2013).
[Crossref]

2011 (3)

2010 (1)

A. Lita, A. L. Washington, L. van de Burgt, G. F. Strouse, and A. E. Stiegman, “Stable efficient solid-state white-light-emitting phosphor with a high scotopic/photopic ratio fabricated from fused CdSe-silica nanocomposites,” Adv. Mater. 22(36), 3987–3991 (2010).
[Crossref] [PubMed]

2006 (1)

K. Man and I. Ashdown, “Accurate colorimetric feedback for RGB LED clusters,” Proc. SPIE 6337, 633702 (2006).
[Crossref]

2005 (2)

S. Chhajed, Y. Xi, Y. L. Li, T. Gessmann, and E. F. Schubert, “Influence of junction temperature on chromaticity and color-rendering properties of trichromatic white-light sources based on light-emitting diodes,” J. Appl. Phys. 97(5), 054506 (2005).
[Crossref]

Y. Ohno, “Spectral design considerations for white LED color rendering,” Opt. Eng. 44(11), 111302 (2005).
[Crossref]

2003 (1)

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

1992 (1)

S. M. Berman, “Energy efficiency consequences of scotopic sensitivity,” J. Illumin Eng. Soc. 21(1), 3–14 (1992).
[Crossref]

Aboulaich, A.

A. Yakoubi, T. B. Chaabane, A. Aboulaich, R. Mahiou, L. Balan, G. Medjahdi, and R. Schneider, “Aqueous synthesis of Cu-doped CdZnS quantum dots with controlled and efficient photoluminescence,” J. Lumin. 175, 193–202 (2016).
[Crossref]

Ashdown, I.

K. Man and I. Ashdown, “Accurate colorimetric feedback for RGB LED clusters,” Proc. SPIE 6337, 633702 (2006).
[Crossref]

Bai, X.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

Balan, L.

A. Yakoubi, T. B. Chaabane, A. Aboulaich, R. Mahiou, L. Balan, G. Medjahdi, and R. Schneider, “Aqueous synthesis of Cu-doped CdZnS quantum dots with controlled and efficient photoluminescence,” J. Lumin. 175, 193–202 (2016).
[Crossref]

Berman, S. M.

S. M. Berman, “Energy efficiency consequences of scotopic sensitivity,” J. Illumin Eng. Soc. 21(1), 3–14 (1992).
[Crossref]

Chaabane, T. B.

A. Yakoubi, T. B. Chaabane, A. Aboulaich, R. Mahiou, L. Balan, G. Medjahdi, and R. Schneider, “Aqueous synthesis of Cu-doped CdZnS quantum dots with controlled and efficient photoluminescence,” J. Lumin. 175, 193–202 (2016).
[Crossref]

Chang, S. J.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Chen, B.

B. Chen, H. Zhong, M. Wang, R. Liu, and B. Zou, “Integration of CuInS2-based nanocrystals for high efficiency and high colour rendering white light-emitting diodes,” Nanoscale 5(8), 3514–3519 (2013).
[Crossref] [PubMed]

Chen, C.

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

Chen, W.

W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

Chen, X.

H. Shen, C. Zhou, S. S. Xu, C. Yu, H. Wang, X. Chen, and L. S. Li, “Phosphine-free synthesis of Zn1−xCdxSe/ZnSe/ZnSexS1−x/ZnS core/multishell structures with bright and stable blue–green photoluminescence,” J. Mater. Chem. C Mater. Opt. Electron. Devices 21(16), 6046–6053 (2011).

Chen, Z.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

Chhajed, S.

S. Chhajed, Y. Xi, Y. L. Li, T. Gessmann, and E. F. Schubert, “Influence of junction temperature on chromaticity and color-rendering properties of trichromatic white-light sources based on light-emitting diodes,” J. Appl. Phys. 97(5), 054506 (2005).
[Crossref]

Chi, G. C.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Chuang, P. H.

P. H. Chuang, C. C. Lin, and R. S. Liu, “Emission-tunable CuInS2/ZnS quantum dots: structure, optical properties, and application in white light-emitting diodes with high color rendering index,” ACS Appl. Mater. Interfaces 6(17), 15379–15387 (2014).
[Crossref] [PubMed]

Demir, H. V.

V. K. Sharma, B. Guzelturk, T. Erdem, Y. Kelestemur, and H. V. Demir, “Tunable white-light-emitting Mn-doped ZnSe nanocrystals,” ACS Appl. Mater. Interfaces 6(5), 3654–3660 (2014).
[Crossref] [PubMed]

T. Erdem and H. V. Demir, “Color science of nanocrystal quantum dots for lighting and displays,” Nanophotonics 2(1), 57–81 (2013).
[Crossref]

S. Nizamoglu, T. Erdem, and H. V. Demir, “High scotopic/photopic ratio white-light-emitting diodes integrated with semiconductor nanophosphors of colloidal quantum dots,” Opt. Lett. 36(10), 1893–1895 (2011).
[Crossref] [PubMed]

Do, Y. R.

Erdem, T.

V. K. Sharma, B. Guzelturk, T. Erdem, Y. Kelestemur, and H. V. Demir, “Tunable white-light-emitting Mn-doped ZnSe nanocrystals,” ACS Appl. Mater. Interfaces 6(5), 3654–3660 (2014).
[Crossref] [PubMed]

T. Erdem and H. V. Demir, “Color science of nanocrystal quantum dots for lighting and displays,” Nanophotonics 2(1), 57–81 (2013).
[Crossref]

S. Nizamoglu, T. Erdem, and H. V. Demir, “High scotopic/photopic ratio white-light-emitting diodes integrated with semiconductor nanophosphors of colloidal quantum dots,” Opt. Lett. 36(10), 1893–1895 (2011).
[Crossref] [PubMed]

Fang, L.

W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

Gao, M.

B. Zhao, Y. Yao, M. Gao, K. Sun, J. Zhang, and W. Li, “Doped quantum dot@silica nanocomposites for white light-emitting diodes,” Nanoscale 7(41), 17231–17236 (2015).
[Crossref] [PubMed]

Gao, Y.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Gao, Y. L.

Z. Q. Guo, T. M. Shih, Y. J. Lu, and Y. L. Gao, “Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes,” IEEE Photonics J. 5(4), 8200409 (2013).
[Crossref]

Gessmann, T.

S. Chhajed, Y. Xi, Y. L. Li, T. Gessmann, and E. F. Schubert, “Influence of junction temperature on chromaticity and color-rendering properties of trichromatic white-light sources based on light-emitting diodes,” J. Appl. Phys. 97(5), 054506 (2005).
[Crossref]

Gong, J. R.

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

Guo, Z.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Guo, Z. Q.

Z. Q. Guo, T. M. Shih, Y. J. Lu, and Y. L. Gao, “Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes,” IEEE Photonics J. 5(4), 8200409 (2013).
[Crossref]

Guzelturk, B.

V. K. Sharma, B. Guzelturk, T. Erdem, Y. Kelestemur, and H. V. Demir, “Tunable white-light-emitting Mn-doped ZnSe nanocrystals,” ACS Appl. Mater. Interfaces 6(5), 3654–3660 (2014).
[Crossref] [PubMed]

Hao, J.

W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

He, G.

He, X.

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

Hu, W.

W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

Huang, K.

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
[Crossref]

Hyvonen, J.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

Jin, X.

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

Kang, H.

Kelestemur, Y.

V. K. Sharma, B. Guzelturk, T. Erdem, Y. Kelestemur, and H. V. Demir, “Tunable white-light-emitting Mn-doped ZnSe nanocrystals,” ACS Appl. Mater. Interfaces 6(5), 3654–3660 (2014).
[Crossref] [PubMed]

Ko, M.

Kuo, C. H.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Lai, W. C.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Li, H. L.

T. T. Xuan, J. Q. Liu, R. J. Xie, H. L. Li, and Z. Sun, “Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition,” Chem. Mater. 27(4), 1187–1193 (2015).
[Crossref]

Li, L. S.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

H. Shen, C. Zhou, S. S. Xu, C. Yu, H. Wang, X. Chen, and L. S. Li, “Phosphine-free synthesis of Zn1−xCdxSe/ZnSe/ZnSexS1−x/ZnS core/multishell structures with bright and stable blue–green photoluminescence,” J. Mater. Chem. C Mater. Opt. Electron. Devices 21(16), 6046–6053 (2011).

Li, Q.

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

Li, W.

B. Zhao, Y. Yao, M. Gao, K. Sun, J. Zhang, and W. Li, “Doped quantum dot@silica nanocomposites for white light-emitting diodes,” Nanoscale 7(41), 17231–17236 (2015).
[Crossref] [PubMed]

Li, Y.

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

Li, Y. L.

S. Chhajed, Y. Xi, Y. L. Li, T. Gessmann, and E. F. Schubert, “Influence of junction temperature on chromaticity and color-rendering properties of trichromatic white-light sources based on light-emitting diodes,” J. Appl. Phys. 97(5), 054506 (2005).
[Crossref]

Lin, C. C.

P. H. Chuang, C. C. Lin, and R. S. Liu, “Emission-tunable CuInS2/ZnS quantum dots: structure, optical properties, and application in white light-emitting diodes with high color rendering index,” ACS Appl. Mater. Interfaces 6(17), 15379–15387 (2014).
[Crossref] [PubMed]

Lin, Y.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Lin, Y. C.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Lita, A.

A. Lita, A. L. Washington, L. van de Burgt, G. F. Strouse, and A. E. Stiegman, “Stable efficient solid-state white-light-emitting phosphor with a high scotopic/photopic ratio fabricated from fused CdSe-silica nanocomposites,” Adv. Mater. 22(36), 3987–3991 (2010).
[Crossref] [PubMed]

Liu, J. Q.

T. T. Xuan, J. Q. Liu, R. J. Xie, H. L. Li, and Z. Sun, “Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition,” Chem. Mater. 27(4), 1187–1193 (2015).
[Crossref]

Liu, R.

B. Chen, H. Zhong, M. Wang, R. Liu, and B. Zou, “Integration of CuInS2-based nanocrystals for high efficiency and high colour rendering white light-emitting diodes,” Nanoscale 5(8), 3514–3519 (2013).
[Crossref] [PubMed]

Liu, R. S.

P. H. Chuang, C. C. Lin, and R. S. Liu, “Emission-tunable CuInS2/ZnS quantum dots: structure, optical properties, and application in white light-emitting diodes with high color rendering index,” ACS Appl. Mater. Interfaces 6(17), 15379–15387 (2014).
[Crossref] [PubMed]

Lu, H.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Lu, Y.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Lu, Y. J.

Z. Q. Guo, T. M. Shih, Y. J. Lu, and Y. L. Gao, “Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes,” IEEE Photonics J. 5(4), 8200409 (2013).
[Crossref]

Luan, S.

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
[Crossref]

Mahiou, R.

A. Yakoubi, T. B. Chaabane, A. Aboulaich, R. Mahiou, L. Balan, G. Medjahdi, and R. Schneider, “Aqueous synthesis of Cu-doped CdZnS quantum dots with controlled and efficient photoluminescence,” J. Lumin. 175, 193–202 (2016).
[Crossref]

Man, K.

K. Man and I. Ashdown, “Accurate colorimetric feedback for RGB LED clusters,” Proc. SPIE 6337, 633702 (2006).
[Crossref]

Medjahdi, G.

A. Yakoubi, T. B. Chaabane, A. Aboulaich, R. Mahiou, L. Balan, G. Medjahdi, and R. Schneider, “Aqueous synthesis of Cu-doped CdZnS quantum dots with controlled and efficient photoluminescence,” J. Lumin. 175, 193–202 (2016).
[Crossref]

Meng, H.

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

Nabiev, I.

K. V. Vokhmintcev, P. S. Samokhvalov, and I. Nabiev, “Charge transfer and separation in photoexcited quantum dot-based systems,” Nano Today 11(2), 189–211 (2016).
[Crossref]

Niu, T.

W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

Nizamoglu, S.

Oh, J. H.

Ohno, Y.

Y. Ohno, “Spectral design considerations for white LED color rendering,” Opt. Eng. 44(11), 111302 (2005).
[Crossref]

Qian, L.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

Qin, Y.

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

Samokhvalov, P. S.

K. V. Vokhmintcev, P. S. Samokhvalov, and I. Nabiev, “Charge transfer and separation in photoexcited quantum dot-based systems,” Nano Today 11(2), 189–211 (2016).
[Crossref]

Schneider, R.

A. Yakoubi, T. B. Chaabane, A. Aboulaich, R. Mahiou, L. Balan, G. Medjahdi, and R. Schneider, “Aqueous synthesis of Cu-doped CdZnS quantum dots with controlled and efficient photoluminescence,” J. Lumin. 175, 193–202 (2016).
[Crossref]

Schubert, E. F.

S. Chhajed, Y. Xi, Y. L. Li, T. Gessmann, and E. F. Schubert, “Influence of junction temperature on chromaticity and color-rendering properties of trichromatic white-light sources based on light-emitting diodes,” J. Appl. Phys. 97(5), 054506 (2005).
[Crossref]

Sharma, V. K.

V. K. Sharma, B. Guzelturk, T. Erdem, Y. Kelestemur, and H. V. Demir, “Tunable white-light-emitting Mn-doped ZnSe nanocrystals,” ACS Appl. Mater. Interfaces 6(5), 3654–3660 (2014).
[Crossref] [PubMed]

Shen, H.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

H. Shen, C. Zhou, S. S. Xu, C. Yu, H. Wang, X. Chen, and L. S. Li, “Phosphine-free synthesis of Zn1−xCdxSe/ZnSe/ZnSexS1−x/ZnS core/multishell structures with bright and stable blue–green photoluminescence,” J. Mater. Chem. C Mater. Opt. Electron. Devices 21(16), 6046–6053 (2011).

Sheu, J. K.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Shi, Z.

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
[Crossref]

Shih, T.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Shih, T. M.

Z. Q. Guo, T. M. Shih, Y. J. Lu, and Y. L. Gao, “Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes,” IEEE Photonics J. 5(4), 8200409 (2013).
[Crossref]

Stiegman, A. E.

A. Lita, A. L. Washington, L. van de Burgt, G. F. Strouse, and A. E. Stiegman, “Stable efficient solid-state white-light-emitting phosphor with a high scotopic/photopic ratio fabricated from fused CdSe-silica nanocomposites,” Adv. Mater. 22(36), 3987–3991 (2010).
[Crossref] [PubMed]

Strouse, G. F.

A. Lita, A. L. Washington, L. van de Burgt, G. F. Strouse, and A. E. Stiegman, “Stable efficient solid-state white-light-emitting phosphor with a high scotopic/photopic ratio fabricated from fused CdSe-silica nanocomposites,” Adv. Mater. 22(36), 3987–3991 (2010).
[Crossref] [PubMed]

Su, Y. K.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Sun, K.

B. Zhao, Y. Yao, M. Gao, K. Sun, J. Zhang, and W. Li, “Doped quantum dot@silica nanocomposites for white light-emitting diodes,” Nanoscale 7(41), 17231–17236 (2015).
[Crossref] [PubMed]

Sun, W.

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

Sun, Z.

T. T. Xuan, J. Q. Liu, R. J. Xie, H. L. Li, and Z. Sun, “Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition,” Chem. Mater. 27(4), 1187–1193 (2015).
[Crossref]

Tang, X.

W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

Titov, A.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

Tsai, J. M.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

van de Burgt, L.

A. Lita, A. L. Washington, L. van de Burgt, G. F. Strouse, and A. E. Stiegman, “Stable efficient solid-state white-light-emitting phosphor with a high scotopic/photopic ratio fabricated from fused CdSe-silica nanocomposites,” Adv. Mater. 22(36), 3987–3991 (2010).
[Crossref] [PubMed]

Vokhmintcev, K. V.

K. V. Vokhmintcev, P. S. Samokhvalov, and I. Nabiev, “Charge transfer and separation in photoexcited quantum dot-based systems,” Nano Today 11(2), 189–211 (2016).
[Crossref]

Wang, A.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

Wang, H.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

H. Shen, C. Zhou, S. S. Xu, C. Yu, H. Wang, X. Chen, and L. S. Li, “Phosphine-free synthesis of Zn1−xCdxSe/ZnSe/ZnSexS1−x/ZnS core/multishell structures with bright and stable blue–green photoluminescence,” J. Mater. Chem. C Mater. Opt. Electron. Devices 21(16), 6046–6053 (2011).

Wang, J.

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

Wang, M.

B. Chen, H. Zhong, M. Wang, R. Liu, and B. Zou, “Integration of CuInS2-based nanocrystals for high efficiency and high colour rendering white light-emitting diodes,” Nanoscale 5(8), 3514–3519 (2013).
[Crossref] [PubMed]

Washington, A. L.

A. Lita, A. L. Washington, L. van de Burgt, G. F. Strouse, and A. E. Stiegman, “Stable efficient solid-state white-light-emitting phosphor with a high scotopic/photopic ratio fabricated from fused CdSe-silica nanocomposites,” Adv. Mater. 22(36), 3987–3991 (2010).
[Crossref] [PubMed]

Wei, T.

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

Wei, T. H.

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

Wu, L. W.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Wu, R. K.

J. K. Sheu, S. J. Chang, C. H. Kuo, Y. K. Su, L. W. Wu, Y. C. Lin, W. C. Lai, J. M. Tsai, G. C. Chi, and R. K. Wu, “White-light emission from near UV InGaN-GaN LED chip precoated with blue/green/red phosphors,” IEEE Photonics Technol. Lett. 15(1), 18–20 (2003).
[Crossref]

Wu, T.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Xi, Y.

S. Chhajed, Y. Xi, Y. L. Li, T. Gessmann, and E. F. Schubert, “Influence of junction temperature on chromaticity and color-rendering properties of trichromatic white-light sources based on light-emitting diodes,” J. Appl. Phys. 97(5), 054506 (2005).
[Crossref]

Xiao, H.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Xiao, J.

Z. Guo, T. Shih, J. Xiao, H. Lu, Y. Lu, T. Wu, Y. Lin, Y. Gao, H. Xiao, and Z. Chen, “Study on color-tunable phosphor-coated white light-emitting diodes with high S/P ratios,” AIP Adv. 6(3), 1028–1122 (2016).
[Crossref]

Xie, R.

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
[Crossref]

Xie, R. J.

T. T. Xuan, J. Q. Liu, R. J. Xie, H. L. Li, and Z. Sun, “Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition,” Chem. Mater. 27(4), 1187–1193 (2015).
[Crossref]

Xu, S. S.

H. Shen, C. Zhou, S. S. Xu, C. Yu, H. Wang, X. Chen, and L. S. Li, “Phosphine-free synthesis of Zn1−xCdxSe/ZnSe/ZnSexS1−x/ZnS core/multishell structures with bright and stable blue–green photoluminescence,” J. Mater. Chem. C Mater. Opt. Electron. Devices 21(16), 6046–6053 (2011).

Xuan, T. T.

T. T. Xuan, J. Q. Liu, R. J. Xie, H. L. Li, and Z. Sun, “Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition,” Chem. Mater. 27(4), 1187–1193 (2015).
[Crossref]

Yakoubi, A.

A. Yakoubi, T. B. Chaabane, A. Aboulaich, R. Mahiou, L. Balan, G. Medjahdi, and R. Schneider, “Aqueous synthesis of Cu-doped CdZnS quantum dots with controlled and efficient photoluminescence,” J. Lumin. 175, 193–202 (2016).
[Crossref]

Yan, H.

Yang, W.

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
[Crossref]

Yang, X.

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

Yang, Y.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

Yao, Y.

B. Zhao, Y. Yao, M. Gao, K. Sun, J. Zhang, and W. Li, “Doped quantum dot@silica nanocomposites for white light-emitting diodes,” Nanoscale 7(41), 17231–17236 (2015).
[Crossref] [PubMed]

Yu, C.

H. Shen, C. Zhou, S. S. Xu, C. Yu, H. Wang, X. Chen, and L. S. Li, “Phosphine-free synthesis of Zn1−xCdxSe/ZnSe/ZnSexS1−x/ZnS core/multishell structures with bright and stable blue–green photoluminescence,” J. Mater. Chem. C Mater. Opt. Electron. Devices 21(16), 6046–6053 (2011).

Yu, J.

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

Yuan, Y.

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
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W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

Zhang, J.

B. Zhao, Y. Yao, M. Gao, K. Sun, J. Zhang, and W. Li, “Doped quantum dot@silica nanocomposites for white light-emitting diodes,” Nanoscale 7(41), 17231–17236 (2015).
[Crossref] [PubMed]

Zhang, Y.

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
[Crossref]

Zhang, Z.

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
[Crossref]

Zhao, B.

B. Zhao, Y. Yao, M. Gao, K. Sun, J. Zhang, and W. Li, “Doped quantum dot@silica nanocomposites for white light-emitting diodes,” Nanoscale 7(41), 17231–17236 (2015).
[Crossref] [PubMed]

Zheng, Y.

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

Zhong, H.

B. Chen, H. Zhong, M. Wang, R. Liu, and B. Zou, “Integration of CuInS2-based nanocrystals for high efficiency and high colour rendering white light-emitting diodes,” Nanoscale 5(8), 3514–3519 (2013).
[Crossref] [PubMed]

Zhou, C.

H. Shen, C. Zhou, S. S. Xu, C. Yu, H. Wang, X. Chen, and L. S. Li, “Phosphine-free synthesis of Zn1−xCdxSe/ZnSe/ZnSexS1−x/ZnS core/multishell structures with bright and stable blue–green photoluminescence,” J. Mater. Chem. C Mater. Opt. Electron. Devices 21(16), 6046–6053 (2011).

Zhou, M.

W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

Zhou, P.

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

Zou, B.

B. Chen, H. Zhong, M. Wang, R. Liu, and B. Zou, “Integration of CuInS2-based nanocrystals for high efficiency and high colour rendering white light-emitting diodes,” Nanoscale 5(8), 3514–3519 (2013).
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V. K. Sharma, B. Guzelturk, T. Erdem, Y. Kelestemur, and H. V. Demir, “Tunable white-light-emitting Mn-doped ZnSe nanocrystals,” ACS Appl. Mater. Interfaces 6(5), 3654–3660 (2014).
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[Crossref] [PubMed]

X. Jin, W. Sun, Z. Chen, T. Wei, C. Chen, X. He, Y. Yuan, Y. Li, and Q. Li, “Exciton generation/dissociation/charge-transfer enhancement in inorganic/organic hybrid solar cells by robust single nanocrystalline LnPxOy (Ln = Eu, Y) doping,” ACS Appl. Mater. Interfaces 6(11), 8771–8781 (2014).
[Crossref] [PubMed]

ACS Catal. (1)

Q. Li, H. Meng, P. Zhou, Y. Zheng, J. Wang, J. Yu, and J. R. Gong, “Zn1–xCdxS Solid Solutions with Controlled Bandgap and Enhanced Visible-Light Photocatalytic H2-Production Activity,” ACS Catal. 3(5), 882–889 (2013).
[Crossref]

Adv. Funct. Mater. (1)

H. Shen, X. Bai, A. Wang, H. Wang, L. Qian, Y. Yang, A. Titov, J. Hyvonen, Y. Zheng, and L. S. Li, “High-efficient deep-blue light-emitting diodes by using high quality ZnxCd1-xS/ZnS core/shell quantum dots,” Adv. Funct. Mater. 24(16), 2367–2373 (2014).
[Crossref]

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Appl. Catal. B (1)

Q. Li, X. Jin, X. Yang, C. Chen, Z. Chen, Y. Qin, T. H. Wei, and W. Sun, “Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer,” Appl. Catal. B 162(162), 524–531 (2015).
[Crossref]

Chem. Mater. (1)

T. T. Xuan, J. Q. Liu, R. J. Xie, H. L. Li, and Z. Sun, “Microwave-assisted synthesis of CdS/ZnS:Cu quantum dots for white light-emitting diodes with high color rendition,” Chem. Mater. 27(4), 1187–1193 (2015).
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H. Shen, C. Zhou, S. S. Xu, C. Yu, H. Wang, X. Chen, and L. S. Li, “Phosphine-free synthesis of Zn1−xCdxSe/ZnSe/ZnSexS1−x/ZnS core/multishell structures with bright and stable blue–green photoluminescence,” J. Mater. Chem. C Mater. Opt. Electron. Devices 21(16), 6046–6053 (2011).

Z. Zhang, S. Luan, K. Huang, Y. Zhang, Z. Shi, R. Xie, and W. Yang, “Single-phase dual emissive Cu:CdS-ZnSe core-shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes,” J. Mater. Chem. C Mater. Opt. Electron. Devices 3(15), 3614–3622 (2015).
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B. Chen, H. Zhong, M. Wang, R. Liu, and B. Zou, “Integration of CuInS2-based nanocrystals for high efficiency and high colour rendering white light-emitting diodes,” Nanoscale 5(8), 3514–3519 (2013).
[Crossref] [PubMed]

B. Zhao, Y. Yao, M. Gao, K. Sun, J. Zhang, and W. Li, “Doped quantum dot@silica nanocomposites for white light-emitting diodes,” Nanoscale 7(41), 17231–17236 (2015).
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W. Chen, J. Hao, W. Hu, Z. Zang, X. Tang, L. Fang, T. Niu, and M. Zhou, “Enhanced stability and tunable photoluminescence in perovskite CsPbX3 /ZnS quantum dot heterostructure,” Small 13(21), 1604085 (2017).
[Crossref] [PubMed]

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J. Choi, Y. Kim, J. W. Jo, J. Kim, B. Sun, G. Walters, F. P. García de Arquer, R. Quintero-Bermudez, Y. Li, C. S. Tan, L. N. Quan, A. P. T. Kam, S. Hoogland, Z. Lu, O. Voznyy, and E. H. Sargent, “Chloride passivation of ZnO electrodes improves charge extraction in colloidal quantum dot photovoltaics,” Adv. Mater. (posted 3 July 2017, in press).

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Figures (5)

Fig. 1
Fig. 1 (a) PL spectra of Cd0.1Zn0.9S/ZnS and Cd0.1Zn0.9S/ZnSe QDs. (b) Digital photographs of Cd0.1Zn0.9S/ZnS and Cd0.1Zn0.9S/ZnSe QDs without (upper) and with (lower) the irradiation of a UV lamp. (c) UV-Vis absorption spectra of Cd0.1Zn0.9S/ZnS and Cd0.1Zn0.9S/ZnSe QDs. (d) Normalized time-resolved PL decay curves of Cd0.1Zn0.9S (emission at 440 nm), Cd0.1Zn0.9S/ZnS (emission at 485 nm) and Cd0.1Zn0.9S/ZnSe (emission at 640 nm) QDs, and their corresponding lifetimes are shown in the inset.
Fig. 2
Fig. 2 TEM images of (a) Cd0.1Zn0.9S/ZnS QDs and (b) Cd0.1Zn0.9S/ZnSe QDs; (c) XRD patterns of the Cd0.1Zn0.9S core, the Cd0.1Zn0.9S/ZnSe QDs and the Cd0.1Zn0.9S/ZnSe QDs. Insets in (a) and (b) are the histograms of the size distribution of the Cd0.1Zn0.9S/ZnS and Cd0.1Zn0.9S/ZnSe QDs, respectively.
Fig. 3
Fig. 3 Simulation results for (a) two-hump QLEDs with different Δ λ B ; (b) four-hump QLEDS with different Δ λ R .
Fig. 4
Fig. 4 Evolution of (a) EL spectra, (b) S/P ratio, Ra, LER and CCT, (c) color coordinates of the fabricated two-hump QLED with different forward bias current.
Fig. 5
Fig. 5 Evolution of (a) EL spectra, (b) S/P ratio, Ra, LER and CCT, (c) color coordinates of the fabricated four-hump QLED with different forward bias current.

Tables (5)

Tables Icon

Table 1 Optical properties of the Cd0.1Zn0.9S, Cd0.1Zn0.9S /ZnS, and Cd0.1Zn0.9S /ZnSe QDs.

Tables Icon

Table 2 Simulation results of S/P ratio, Ra, LER and CCT for a two-hump QLED.

Tables Icon

Table 3 Simulation results of S/P ratio, Ra, LER and CCT for a four-hump QLED.

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Table 4 S/P ratio, Ra, LER and CCT for the prepared two-hump QLED.

Tables Icon

Table 5 S/P ratio, Ra, LER and CCT for the prepared four-hump QLED.

Equations (7)

Equations on this page are rendered with MathJax. Learn more.

I ( t ) = [ a 1 e x p ( t / τ 1 ) + a 2 e x p ( t / τ 2 ) ] F ( t )
τ = a 1 τ 1 2 + a 2 τ 2 2 a 1 τ 1 + a 2 τ 2
L E R p = 683 l m W o p t - 1 S ( λ ) V ( λ ) d λ S ( λ ) d λ L E R s = 1699 l m W o p t - 1 S ( λ ) V ' ( λ ) d λ S ( λ ) d λ
S / P = L E R s L E R p = 1699 l m W o p t 1 S ( λ ) V ' ( λ ) d λ 683 l m W o p t 1 S ( λ ) V ( λ ) d λ
S ( λ ) = H p × [ G ( λ ) + 2 × G 5 ( λ ) ] / 3
G ( λ ) = e x p [ ( λ λ p ) 2 / Δ λ 2 ]
S WLED ( λ ) = i S i ( λ )

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