Abstract

The spherical and submicron size of Sr1-xCaxSe:Eu2+ phosphors were successfully prepared by ultrasonic spray pyrolysis. The phosphors adopted a cubic structure, and the replacement of Sr2+ with Ca2+ decreased the lattice parameter. The Sr1-xCaxSe:Eu2+ showed broad and strong excitation under 420-460nm blue light, and the emission band could be tuned from 565 to 607nm by increasing the Ca2+ ratio in the host lattice. In addition, the doping of Zn2+ into Sr2+ or Ca2+ enhanced the emission intensity with a small red shift due to the change in crystal field strength and nephelauxetic effects. The warm and high CRI of white LED was achieved using blue LED pumped with blending phosphors of 612nm emitting Ca0.98Zn0.02Se:Eu2+ and 565nm emitting YAG. The correlated color temperatures and CRI were 4719.2K, and 86.3, respectively, and an acceptable color variation was also observed at operating currents ranging from 20 to 70mA.

© 2012 OSA

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    [CrossRef]
  2. N. Yamashita, O. Harada, and K. Nakamura, “Photoluminescence spectra of Eu2+ centers in Ca(S,Se):Eu and Sr(S,Se):Eu,” Jpn. J. Appl. Phys.34(Part 1, No. 10), 5539–5545 (1995).
    [CrossRef]
  3. J. Haecke, P. Smet, K. Keyser, and D. Poelman, “Single crystal CaS:Eu and SrS:Eu luminescent particles obtained by solvothermal synthesis,” J. Electrochem. Soc.154(9), J278–J282 (2007).
    [CrossRef]
  4. Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
    [CrossRef]
  5. K. Kim, J. Park, K. Choi, J. Kim, and C. Kim, “Luminescent properties of CaSe1−xSx:Eu and application in LEDs,” Electrochem. Solid-State Lett.9(8), G262–G264 (2006).
    [CrossRef]
  6. H. Yu, W. Chung, H. Jung, S. Park, and S. Kim, “Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application,” Mater. Lett.65(17-18), 2690–2692 (2011).
    [CrossRef]
  7. M. Nazarov and C. Yoon, “Controlled peak wavelength shift of Ca1-xSrx(SySe1-y):Eu2+ phosphor for LED application,” J. Solid State Chem.179(8), 2529–2533 (2006).
    [CrossRef]
  8. X. Zhang, L. Liang, J. Zhang, and Q. Su, “Luminescence properties of (Ca1-xSrx)Se:Eu2+ phosphors for white LEDs application,” Mater. Lett.59(7), 749–753 (2005).
    [CrossRef]
  9. H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
    [CrossRef]
  10. I. Taniguchi, “Physical and electrochemical properties of spherical nanostructured LiCrxMn2-xO4 particles synthesized by ultrasonic spray pyrolysis,” Ind. Eng. Chem. Res.44(17), 6560–6565 (2005).
    [CrossRef]
  11. S. A. Song, K. Y. Jung, and S. B. Park, “Preparation of Y2O3 particles by flame spray pyrolysis with emulsion,” Langmuir25(6), 3402–3406 (2009).
    [CrossRef] [PubMed]
  12. D. Jung, J. Cho, H. Koo, and Y. Kang, “Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis,” J. Alloy. Comp.472(1-2), 367–372 (2009).
    [CrossRef]
  13. D. Kang and S. Kim, “Morphologies and properties of NiO particles prepared from NiCl2·6H2O by spray pyrolysis,” Kor. J. Chem. Eng.26(6), 1800–1805 (2009).
    [CrossRef]
  14. C. Chiang, Y. Shin, and S. Ehrman, “Li doped CuO film electrodes for photoelectrochemical cells,” J. Electrochem. Soc.159(2), B227–B231 (2012).
    [CrossRef]
  15. H. T. Huang, C. C. Tsai, and Y. P. Huang, “Conformal phosphor coating using pulsed spray to reduce color deviation of white LEDs,” Opt. Express18(S2Suppl 2), A201–A206 (2010).
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    [CrossRef]

2012

C. Chiang, Y. Shin, and S. Ehrman, “Li doped CuO film electrodes for photoelectrochemical cells,” J. Electrochem. Soc.159(2), B227–B231 (2012).
[CrossRef]

2011

H. Yu, W. Chung, H. Jung, S. Park, and S. Kim, “Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application,” Mater. Lett.65(17-18), 2690–2692 (2011).
[CrossRef]

H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
[CrossRef]

2010

Y. Kim, D. Cho, Y. Jeong, M. Nah, K. Kim, and J. Kang, “Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode,” Mater. Res. Bull.45(8), 905–909 (2010).
[CrossRef]

H. T. Huang, C. C. Tsai, and Y. P. Huang, “Conformal phosphor coating using pulsed spray to reduce color deviation of white LEDs,” Opt. Express18(S2Suppl 2), A201–A206 (2010).
[CrossRef] [PubMed]

2009

S. A. Song, K. Y. Jung, and S. B. Park, “Preparation of Y2O3 particles by flame spray pyrolysis with emulsion,” Langmuir25(6), 3402–3406 (2009).
[CrossRef] [PubMed]

D. Jung, J. Cho, H. Koo, and Y. Kang, “Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis,” J. Alloy. Comp.472(1-2), 367–372 (2009).
[CrossRef]

D. Kang and S. Kim, “Morphologies and properties of NiO particles prepared from NiCl2·6H2O by spray pyrolysis,” Kor. J. Chem. Eng.26(6), 1800–1805 (2009).
[CrossRef]

2007

J. Haecke, P. Smet, K. Keyser, and D. Poelman, “Single crystal CaS:Eu and SrS:Eu luminescent particles obtained by solvothermal synthesis,” J. Electrochem. Soc.154(9), J278–J282 (2007).
[CrossRef]

2006

M. Nazarov and C. Yoon, “Controlled peak wavelength shift of Ca1-xSrx(SySe1-y):Eu2+ phosphor for LED application,” J. Solid State Chem.179(8), 2529–2533 (2006).
[CrossRef]

K. Kim, J. Park, K. Choi, J. Kim, and C. Kim, “Luminescent properties of CaSe1−xSx:Eu and application in LEDs,” Electrochem. Solid-State Lett.9(8), G262–G264 (2006).
[CrossRef]

2005

X. Zhang, L. Liang, J. Zhang, and Q. Su, “Luminescence properties of (Ca1-xSrx)Se:Eu2+ phosphors for white LEDs application,” Mater. Lett.59(7), 749–753 (2005).
[CrossRef]

I. Taniguchi, “Physical and electrochemical properties of spherical nanostructured LiCrxMn2-xO4 particles synthesized by ultrasonic spray pyrolysis,” Ind. Eng. Chem. Res.44(17), 6560–6565 (2005).
[CrossRef]

Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
[CrossRef]

1995

N. Yamashita, O. Harada, and K. Nakamura, “Photoluminescence spectra of Eu2+ centers in Ca(S,Se):Eu and Sr(S,Se):Eu,” Jpn. J. Appl. Phys.34(Part 1, No. 10), 5539–5545 (1995).
[CrossRef]

1984

H. Kasano, K. Megumi, and H. Yamamoto, “Cathodoluminescence of Ca1-x MgxS:A (A = Eu or Ce),” J. Electrochem. Soc.131(8), 1953–1960 (1984).
[CrossRef]

Chiang, C.

C. Chiang, Y. Shin, and S. Ehrman, “Li doped CuO film electrodes for photoelectrochemical cells,” J. Electrochem. Soc.159(2), B227–B231 (2012).
[CrossRef]

Cho, D.

Y. Kim, D. Cho, Y. Jeong, M. Nah, K. Kim, and J. Kang, “Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode,” Mater. Res. Bull.45(8), 905–909 (2010).
[CrossRef]

Cho, J.

D. Jung, J. Cho, H. Koo, and Y. Kang, “Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis,” J. Alloy. Comp.472(1-2), 367–372 (2009).
[CrossRef]

Choi, K.

K. Kim, J. Park, K. Choi, J. Kim, and C. Kim, “Luminescent properties of CaSe1−xSx:Eu and application in LEDs,” Electrochem. Solid-State Lett.9(8), G262–G264 (2006).
[CrossRef]

Chung, W.

H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
[CrossRef]

H. Yu, W. Chung, H. Jung, S. Park, and S. Kim, “Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application,” Mater. Lett.65(17-18), 2690–2692 (2011).
[CrossRef]

Ehrman, S.

C. Chiang, Y. Shin, and S. Ehrman, “Li doped CuO film electrodes for photoelectrochemical cells,” J. Electrochem. Soc.159(2), B227–B231 (2012).
[CrossRef]

Fang, Y.

Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
[CrossRef]

Haecke, J.

J. Haecke, P. Smet, K. Keyser, and D. Poelman, “Single crystal CaS:Eu and SrS:Eu luminescent particles obtained by solvothermal synthesis,” J. Electrochem. Soc.154(9), J278–J282 (2007).
[CrossRef]

Harada, O.

N. Yamashita, O. Harada, and K. Nakamura, “Photoluminescence spectra of Eu2+ centers in Ca(S,Se):Eu and Sr(S,Se):Eu,” Jpn. J. Appl. Phys.34(Part 1, No. 10), 5539–5545 (1995).
[CrossRef]

Hu, Y.

Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
[CrossRef]

Huang, H. T.

Huang, X.

Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
[CrossRef]

Huang, Y. P.

Jeong, Y.

Y. Kim, D. Cho, Y. Jeong, M. Nah, K. Kim, and J. Kang, “Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode,” Mater. Res. Bull.45(8), 905–909 (2010).
[CrossRef]

Jung, D.

D. Jung, J. Cho, H. Koo, and Y. Kang, “Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis,” J. Alloy. Comp.472(1-2), 367–372 (2009).
[CrossRef]

Jung, H.

H. Yu, W. Chung, H. Jung, S. Park, and S. Kim, “Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application,” Mater. Lett.65(17-18), 2690–2692 (2011).
[CrossRef]

H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
[CrossRef]

Jung, K. Y.

S. A. Song, K. Y. Jung, and S. B. Park, “Preparation of Y2O3 particles by flame spray pyrolysis with emulsion,” Langmuir25(6), 3402–3406 (2009).
[CrossRef] [PubMed]

Kang, D.

D. Kang and S. Kim, “Morphologies and properties of NiO particles prepared from NiCl2·6H2O by spray pyrolysis,” Kor. J. Chem. Eng.26(6), 1800–1805 (2009).
[CrossRef]

Kang, J.

Y. Kim, D. Cho, Y. Jeong, M. Nah, K. Kim, and J. Kang, “Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode,” Mater. Res. Bull.45(8), 905–909 (2010).
[CrossRef]

Kang, Y.

D. Jung, J. Cho, H. Koo, and Y. Kang, “Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis,” J. Alloy. Comp.472(1-2), 367–372 (2009).
[CrossRef]

Kasano, H.

H. Kasano, K. Megumi, and H. Yamamoto, “Cathodoluminescence of Ca1-x MgxS:A (A = Eu or Ce),” J. Electrochem. Soc.131(8), 1953–1960 (1984).
[CrossRef]

Keyser, K.

J. Haecke, P. Smet, K. Keyser, and D. Poelman, “Single crystal CaS:Eu and SrS:Eu luminescent particles obtained by solvothermal synthesis,” J. Electrochem. Soc.154(9), J278–J282 (2007).
[CrossRef]

Kim, C.

K. Kim, J. Park, K. Choi, J. Kim, and C. Kim, “Luminescent properties of CaSe1−xSx:Eu and application in LEDs,” Electrochem. Solid-State Lett.9(8), G262–G264 (2006).
[CrossRef]

Kim, J.

H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
[CrossRef]

K. Kim, J. Park, K. Choi, J. Kim, and C. Kim, “Luminescent properties of CaSe1−xSx:Eu and application in LEDs,” Electrochem. Solid-State Lett.9(8), G262–G264 (2006).
[CrossRef]

Kim, K.

Y. Kim, D. Cho, Y. Jeong, M. Nah, K. Kim, and J. Kang, “Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode,” Mater. Res. Bull.45(8), 905–909 (2010).
[CrossRef]

K. Kim, J. Park, K. Choi, J. Kim, and C. Kim, “Luminescent properties of CaSe1−xSx:Eu and application in LEDs,” Electrochem. Solid-State Lett.9(8), G262–G264 (2006).
[CrossRef]

Kim, S.

H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
[CrossRef]

H. Yu, W. Chung, H. Jung, S. Park, and S. Kim, “Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application,” Mater. Lett.65(17-18), 2690–2692 (2011).
[CrossRef]

D. Kang and S. Kim, “Morphologies and properties of NiO particles prepared from NiCl2·6H2O by spray pyrolysis,” Kor. J. Chem. Eng.26(6), 1800–1805 (2009).
[CrossRef]

Kim, Y.

Y. Kim, D. Cho, Y. Jeong, M. Nah, K. Kim, and J. Kang, “Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode,” Mater. Res. Bull.45(8), 905–909 (2010).
[CrossRef]

Koo, H.

D. Jung, J. Cho, H. Koo, and Y. Kang, “Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis,” J. Alloy. Comp.472(1-2), 367–372 (2009).
[CrossRef]

Liang, L.

X. Zhang, L. Liang, J. Zhang, and Q. Su, “Luminescence properties of (Ca1-xSrx)Se:Eu2+ phosphors for white LEDs application,” Mater. Lett.59(7), 749–753 (2005).
[CrossRef]

Megumi, K.

H. Kasano, K. Megumi, and H. Yamamoto, “Cathodoluminescence of Ca1-x MgxS:A (A = Eu or Ce),” J. Electrochem. Soc.131(8), 1953–1960 (1984).
[CrossRef]

Nah, M.

Y. Kim, D. Cho, Y. Jeong, M. Nah, K. Kim, and J. Kang, “Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode,” Mater. Res. Bull.45(8), 905–909 (2010).
[CrossRef]

Nakamura, K.

N. Yamashita, O. Harada, and K. Nakamura, “Photoluminescence spectra of Eu2+ centers in Ca(S,Se):Eu and Sr(S,Se):Eu,” Jpn. J. Appl. Phys.34(Part 1, No. 10), 5539–5545 (1995).
[CrossRef]

Nazarov, M.

M. Nazarov and C. Yoon, “Controlled peak wavelength shift of Ca1-xSrx(SySe1-y):Eu2+ phosphor for LED application,” J. Solid State Chem.179(8), 2529–2533 (2006).
[CrossRef]

Park, J.

K. Kim, J. Park, K. Choi, J. Kim, and C. Kim, “Luminescent properties of CaSe1−xSx:Eu and application in LEDs,” Electrochem. Solid-State Lett.9(8), G262–G264 (2006).
[CrossRef]

Park, S.

H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
[CrossRef]

H. Yu, W. Chung, H. Jung, S. Park, and S. Kim, “Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application,” Mater. Lett.65(17-18), 2690–2692 (2011).
[CrossRef]

Park, S. B.

S. A. Song, K. Y. Jung, and S. B. Park, “Preparation of Y2O3 particles by flame spray pyrolysis with emulsion,” Langmuir25(6), 3402–3406 (2009).
[CrossRef] [PubMed]

Poelman, D.

J. Haecke, P. Smet, K. Keyser, and D. Poelman, “Single crystal CaS:Eu and SrS:Eu luminescent particles obtained by solvothermal synthesis,” J. Electrochem. Soc.154(9), J278–J282 (2007).
[CrossRef]

Shin, Y.

C. Chiang, Y. Shin, and S. Ehrman, “Li doped CuO film electrodes for photoelectrochemical cells,” J. Electrochem. Soc.159(2), B227–B231 (2012).
[CrossRef]

Smet, P.

J. Haecke, P. Smet, K. Keyser, and D. Poelman, “Single crystal CaS:Eu and SrS:Eu luminescent particles obtained by solvothermal synthesis,” J. Electrochem. Soc.154(9), J278–J282 (2007).
[CrossRef]

Song, S. A.

S. A. Song, K. Y. Jung, and S. B. Park, “Preparation of Y2O3 particles by flame spray pyrolysis with emulsion,” Langmuir25(6), 3402–3406 (2009).
[CrossRef] [PubMed]

Su, Q.

X. Zhang, L. Liang, J. Zhang, and Q. Su, “Luminescence properties of (Ca1-xSrx)Se:Eu2+ phosphors for white LEDs application,” Mater. Lett.59(7), 749–753 (2005).
[CrossRef]

Taniguchi, I.

I. Taniguchi, “Physical and electrochemical properties of spherical nanostructured LiCrxMn2-xO4 particles synthesized by ultrasonic spray pyrolysis,” Ind. Eng. Chem. Res.44(17), 6560–6565 (2005).
[CrossRef]

Tsai, C. C.

Yamamoto, H.

H. Kasano, K. Megumi, and H. Yamamoto, “Cathodoluminescence of Ca1-x MgxS:A (A = Eu or Ce),” J. Electrochem. Soc.131(8), 1953–1960 (1984).
[CrossRef]

Yamashita, N.

N. Yamashita, O. Harada, and K. Nakamura, “Photoluminescence spectra of Eu2+ centers in Ca(S,Se):Eu and Sr(S,Se):Eu,” Jpn. J. Appl. Phys.34(Part 1, No. 10), 5539–5545 (1995).
[CrossRef]

Ye, H.

Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
[CrossRef]

Yoon, C.

M. Nazarov and C. Yoon, “Controlled peak wavelength shift of Ca1-xSrx(SySe1-y):Eu2+ phosphor for LED application,” J. Solid State Chem.179(8), 2529–2533 (2006).
[CrossRef]

Yu, H.

H. Yu, W. Chung, H. Jung, S. Park, and S. Kim, “Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application,” Mater. Lett.65(17-18), 2690–2692 (2011).
[CrossRef]

H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
[CrossRef]

Zhang, J.

X. Zhang, L. Liang, J. Zhang, and Q. Su, “Luminescence properties of (Ca1-xSrx)Se:Eu2+ phosphors for white LEDs application,” Mater. Lett.59(7), 749–753 (2005).
[CrossRef]

Zhang, S.

Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
[CrossRef]

Zhang, X.

X. Zhang, L. Liang, J. Zhang, and Q. Su, “Luminescence properties of (Ca1-xSrx)Se:Eu2+ phosphors for white LEDs application,” Mater. Lett.59(7), 749–753 (2005).
[CrossRef]

Zhuang, W.

Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
[CrossRef]

Electrochem. Solid-State Lett.

K. Kim, J. Park, K. Choi, J. Kim, and C. Kim, “Luminescent properties of CaSe1−xSx:Eu and application in LEDs,” Electrochem. Solid-State Lett.9(8), G262–G264 (2006).
[CrossRef]

Ind. Eng. Chem. Res.

I. Taniguchi, “Physical and electrochemical properties of spherical nanostructured LiCrxMn2-xO4 particles synthesized by ultrasonic spray pyrolysis,” Ind. Eng. Chem. Res.44(17), 6560–6565 (2005).
[CrossRef]

J. Alloy. Comp.

D. Jung, J. Cho, H. Koo, and Y. Kang, “Characteristics of Ce0.6Tb0.4MgAl11O19 phosphor powders prepared by high temperature flame spray pyrolysis,” J. Alloy. Comp.472(1-2), 367–372 (2009).
[CrossRef]

J. Cryst. Growth

H. Yu, W. Chung, H. Jung, S. Park, J. Kim, and S. Kim, “Luminous properties of Sr1-xZnxSe:Eu2+ phosphors for LEDs application,” J. Cryst. Growth326(1), 77–80 (2011).
[CrossRef]

J. Electrochem. Soc.

C. Chiang, Y. Shin, and S. Ehrman, “Li doped CuO film electrodes for photoelectrochemical cells,” J. Electrochem. Soc.159(2), B227–B231 (2012).
[CrossRef]

H. Kasano, K. Megumi, and H. Yamamoto, “Cathodoluminescence of Ca1-x MgxS:A (A = Eu or Ce),” J. Electrochem. Soc.131(8), 1953–1960 (1984).
[CrossRef]

J. Haecke, P. Smet, K. Keyser, and D. Poelman, “Single crystal CaS:Eu and SrS:Eu luminescent particles obtained by solvothermal synthesis,” J. Electrochem. Soc.154(9), J278–J282 (2007).
[CrossRef]

J. Lumin.

Y. Hu, W. Zhuang, H. Ye, S. Zhang, Y. Fang, and X. Huang, “Preparation and luminescent properties of (Ca1-x,Srx)S:Eu2+ red-emitting phosphor for white LED,” J. Lumin.111(3), 139–145 (2005).
[CrossRef]

J. Solid State Chem.

M. Nazarov and C. Yoon, “Controlled peak wavelength shift of Ca1-xSrx(SySe1-y):Eu2+ phosphor for LED application,” J. Solid State Chem.179(8), 2529–2533 (2006).
[CrossRef]

Jpn. J. Appl. Phys.

N. Yamashita, O. Harada, and K. Nakamura, “Photoluminescence spectra of Eu2+ centers in Ca(S,Se):Eu and Sr(S,Se):Eu,” Jpn. J. Appl. Phys.34(Part 1, No. 10), 5539–5545 (1995).
[CrossRef]

Kor. J. Chem. Eng.

D. Kang and S. Kim, “Morphologies and properties of NiO particles prepared from NiCl2·6H2O by spray pyrolysis,” Kor. J. Chem. Eng.26(6), 1800–1805 (2009).
[CrossRef]

Langmuir

S. A. Song, K. Y. Jung, and S. B. Park, “Preparation of Y2O3 particles by flame spray pyrolysis with emulsion,” Langmuir25(6), 3402–3406 (2009).
[CrossRef] [PubMed]

Mater. Lett.

X. Zhang, L. Liang, J. Zhang, and Q. Su, “Luminescence properties of (Ca1-xSrx)Se:Eu2+ phosphors for white LEDs application,” Mater. Lett.59(7), 749–753 (2005).
[CrossRef]

H. Yu, W. Chung, H. Jung, S. Park, and S. Kim, “Luminous properties of color tunable strontium thio-selenide phosphors for LEDs application,” Mater. Lett.65(17-18), 2690–2692 (2011).
[CrossRef]

Mater. Res. Bull.

Y. Kim, D. Cho, Y. Jeong, M. Nah, K. Kim, and J. Kang, “Luminescence characterization of (Ca1-xZnx)Ga2S4:Eu2+ phosphors for a white light-emitting diode,” Mater. Res. Bull.45(8), 905–909 (2010).
[CrossRef]

Opt. Express

Other

S. Perkowiz, “Optical Characterization of Semiconductors: Infrared, Raman, and Photoluminescence Spectroscopy” (Academic Press, 1993).

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Figures (7)

Fig. 1
Fig. 1

The SEM image of the as-prepared (a)SrSe:Eu2+, (b)CaSe:Eu2+, post heat-treated (c)SrSe:Eu2+, and (d)CaSe:Eu2+. Inset shows the size distribution of as-prepared particles. (e) Sr0.8Ca0.2Se:Eu2+, (f) Sr0.6Ca0.4Se:Eu2+, (g) Sr0.4Ca0.6Se:Eu2+, (h) Sr0.2Ca0.8Se:Eu2+, (i) Sr0.95Zn0.05Se:Eu2+, (j) Ca0.95Ca0.05Se:Eu2+.

Fig. 2
Fig. 2

(a) The XRD patterns of Sr1-xCaxSe:Eu2+ (X = 0, 0.2, 0.4, 0.6, 0.8, 1) phosphors, (b) calculated values of crystal planes spacing.

Fig. 3
Fig. 3

The photoluminescence of Sr1-xCaxSe:Eu2+ (X = 0, 0.2, 0.4, 0.6, 0.8, 1) phosphors: (a) excitation (b) emission spectra (λex = 460nm).

Fig. 4
Fig. 4

The relative emission intensity and variation of emission wavelength with different Zn concentration. (a) Sr1-xZnxSe:Eu2+ (b) Ca1-xZnxSe:Eu2+.

Fig. 5
Fig. 5

The excitation and emission intensity of Zn doped phosphors. (a) Sr0.95Zn0.05Se:Eu2+, (b) Ca0.98Zn0.02Se:Eu2+.

Fig. 6
Fig. 6

The XRD patterns of Zn doped (a) Sr1-xZnxSe:Eu2+, (b) Ca1-xZnxSe:Eu2+ phosphors. (X = 0.01, 0.05, 0.1, 0.2, 0.3)

Fig. 7
Fig. 7

The emission spectra of fabricated white LED. (a) 460nm InGaN LED + Sr0.95Zn0.05Se:Eu2+ phosphor (b) 460nm InGaN LED + YAG and Ca0.98Zn0.02Se:Eu2+ blending phosphor with various applied currents (20-70mA).

Equations (1)

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Dq= 3Z e 2 r 4 5 R 5

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