Abstract

Green phosphorescent inverted hybrid inorganic-organic light-emitting diodes (IHyLEDs) based on a simplified organic layer/${{WO}}_{3}$ structure have been demonstrated. The ${{WO}}_{3}$ layer enabled facile hole injection and transport, which was balanced by efficient electron injection from the indium-tin-oxide (ITO) cathode overcoated with nanometer-thick Ca. The IHyLEDs had a turn-on voltage of 6 V. At 20 ${{mA}}/{{cm}}^{2}$, it reached a luminance of 8133 ${{cd}}/{{m}} ^{2}$ and a current efficiency of 40 cd/A, which were 43% higher than a similar IHyLED with a conventional Al/LiF electron injection layer. The IHyLEDs with Ca also exhibited improved reliability under constant-current stressing at 20 ${{mA}}/{{cm}}^{2}$.

© 2014 IEEE

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  3. M. H. Lee, S. M. Seop, J. S. Kim, J. H. Hwang, H. J. Shin, S. K. Cho, K. W. Min, W. K. Kwak, S. I. Jung, C. S. Kim, W. S. Choi, S. C. Kim, E. J. Yoo, "Development of 31-inch full-HD AMOLED TV using LTPS-TFT and RGB FMM," SID Symp. Dig. Tech. Papers (2009) pp. 802-804.
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2013 (1)

R. Acharya, X. A. Cao, "Improving the performance of a hybrid inorganic-organic light-emitting diode through structure optimization," IEEE/OSA J. Display Technol. 9, 942-946 (2013).

2012 (3)

X. A. Cao, Y. Q. Zhang, "Performance enhancement of organic light-emitting diodes by chlorine plasma treatment of indium tin oxide," Appl. Phys. Lett. 100, 183304 (2012).

R. Acharya, X. A. Cao, "High-brightness organic light-emitting diodes based on a simplified hybrid structure," Appl. Phys. Lett. 101, 053306 (2012).

X. W. Zhang, H. P. Lin, J. Li, L. Zhang, B. Wei, X. Y. Jiang, Z. L. Zhang, "A very simple method of constructing efficient inverted top-emitting organic light-emitting diode based on Ag/Al bilayer reflective cathode," J. Luminesc. 132, 1-5 (2012).

2010 (1)

H. Lee, I. Park, J. Kwak, D. Y. Yoon, C. Lee, "Improvement of electron injection in inverted bottom-emission blue phosphorescent organic light emitting diodes using zinc oxide nanoparticles," Appl. Phys. Lett. 96, 153306 (2010).

2008 (2)

Y. Lee, J. Kim, S. Kwon, C. K. Min, Y. Yi, J. W. Kim, B. Koo, M. Hong, "Interface studies of Aluminum, 8-hydroxyquinolatolithium (Liq) and ${{Alq}}_{3}$ for inverted OLED application," Organic Electron. 9, 407-412 (2008).

H. J. Bolink, E. Coronado, D. Repetto, M. Sessolo, E. M. Barea, J. Bisquert, G. Garcia-Belmonte, J. Prochazka, L. Kavan, "Inverted solution processable OLEDs using a metal oxide as an electron injection contact," Adv. Funct. Mater. 18, 145-150 (2008).

2006 (1)

T. Y. Chu, J. F. Chen, S. Y. Chen, C. J. Chen, C. H. Chen, "Highly efficient and stable inverted bottom-emission organic light emitting devices," Appl. Phys. Lett. 89, 053503 (2006).

2005 (1)

C. C. Wu, C. W. Chen, C. L. Lin, C. J. Yang, "Advanced organic light-emitting devices for enhancing display performances," J. Display Technol. 1, 248-266 (2005).

2004 (1)

K. Nomura, H. Ohta, A. Takagi, T. Kamiya, M. Hirano, H. Hosono, "Room-temperature fabrication of transparent flexible thin-film transistors using amorphous oxide semiconductors," Nature 432, 488-492 (2004).

2002 (1)

P. Servati, S. Prakash, A. Nathan, C. Py, "Amorphous silicon driver circuits for OLED displays," J. Vac. Sci. Technol. A 20, 1374-1378 (2002).

2001 (1)

1M. Stewart, R. S. Howell, L. Pires, M. K. Hatalis, "Polysilicon TFT technology for active matrix OLED displays," IEEE Trans. Electron Devices 48, 845-851 (2001).

1998 (2)

G. Gu, S. R. Forrest, "Design of flat-panel displays based on organic light-emitting devices," IEEE J. Sel. Topics Quantum Electron. 4, 83-99 (1998).

S. E. Shaheen, G. E. Jabbour, M. M. Morrell, Y. Kawabe, B. Kippelen, N. Peyghambarian, M. F. Nabor, R. Schlaf, E. A. Mash, N. R. Armstrong, "Bright blue organic light-emitting diode with improved color purity using a LiF/Al cathode," J. Appl. Phys. 84, 23242327 (1998).

1997 (1)

L. S. Hung, C. W. Tang, M. G. Mason, "Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode," Appl. Phys. Lett. 70, 152-154 (1997).

Adv. Funct. Mater. (1)

H. J. Bolink, E. Coronado, D. Repetto, M. Sessolo, E. M. Barea, J. Bisquert, G. Garcia-Belmonte, J. Prochazka, L. Kavan, "Inverted solution processable OLEDs using a metal oxide as an electron injection contact," Adv. Funct. Mater. 18, 145-150 (2008).

Appl. Phys. Lett. (1)

R. Acharya, X. A. Cao, "High-brightness organic light-emitting diodes based on a simplified hybrid structure," Appl. Phys. Lett. 101, 053306 (2012).

Appl. Phys. Lett. (4)

H. Lee, I. Park, J. Kwak, D. Y. Yoon, C. Lee, "Improvement of electron injection in inverted bottom-emission blue phosphorescent organic light emitting diodes using zinc oxide nanoparticles," Appl. Phys. Lett. 96, 153306 (2010).

L. S. Hung, C. W. Tang, M. G. Mason, "Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode," Appl. Phys. Lett. 70, 152-154 (1997).

X. A. Cao, Y. Q. Zhang, "Performance enhancement of organic light-emitting diodes by chlorine plasma treatment of indium tin oxide," Appl. Phys. Lett. 100, 183304 (2012).

T. Y. Chu, J. F. Chen, S. Y. Chen, C. J. Chen, C. H. Chen, "Highly efficient and stable inverted bottom-emission organic light emitting devices," Appl. Phys. Lett. 89, 053503 (2006).

IEEE J. Sel. Topics Quantum Electron. (1)

G. Gu, S. R. Forrest, "Design of flat-panel displays based on organic light-emitting devices," IEEE J. Sel. Topics Quantum Electron. 4, 83-99 (1998).

IEEE Trans. Electron Devices (1)

1M. Stewart, R. S. Howell, L. Pires, M. K. Hatalis, "Polysilicon TFT technology for active matrix OLED displays," IEEE Trans. Electron Devices 48, 845-851 (2001).

IEEE/OSA J. Display Technol. (1)

R. Acharya, X. A. Cao, "Improving the performance of a hybrid inorganic-organic light-emitting diode through structure optimization," IEEE/OSA J. Display Technol. 9, 942-946 (2013).

J. Display Technol. (1)

C. C. Wu, C. W. Chen, C. L. Lin, C. J. Yang, "Advanced organic light-emitting devices for enhancing display performances," J. Display Technol. 1, 248-266 (2005).

J. Appl. Phys. (1)

S. E. Shaheen, G. E. Jabbour, M. M. Morrell, Y. Kawabe, B. Kippelen, N. Peyghambarian, M. F. Nabor, R. Schlaf, E. A. Mash, N. R. Armstrong, "Bright blue organic light-emitting diode with improved color purity using a LiF/Al cathode," J. Appl. Phys. 84, 23242327 (1998).

J. Luminesc. (1)

X. W. Zhang, H. P. Lin, J. Li, L. Zhang, B. Wei, X. Y. Jiang, Z. L. Zhang, "A very simple method of constructing efficient inverted top-emitting organic light-emitting diode based on Ag/Al bilayer reflective cathode," J. Luminesc. 132, 1-5 (2012).

J. Vac. Sci. Technol. A (1)

P. Servati, S. Prakash, A. Nathan, C. Py, "Amorphous silicon driver circuits for OLED displays," J. Vac. Sci. Technol. A 20, 1374-1378 (2002).

Nature (1)

K. Nomura, H. Ohta, A. Takagi, T. Kamiya, M. Hirano, H. Hosono, "Room-temperature fabrication of transparent flexible thin-film transistors using amorphous oxide semiconductors," Nature 432, 488-492 (2004).

Organic Electron. (1)

Y. Lee, J. Kim, S. Kwon, C. K. Min, Y. Yi, J. W. Kim, B. Koo, M. Hong, "Interface studies of Aluminum, 8-hydroxyquinolatolithium (Liq) and ${{Alq}}_{3}$ for inverted OLED application," Organic Electron. 9, 407-412 (2008).

Other (2)

M. H. Lee, S. M. Seop, J. S. Kim, J. H. Hwang, H. J. Shin, S. K. Cho, K. W. Min, W. K. Kwak, S. I. Jung, C. S. Kim, W. S. Choi, S. C. Kim, E. J. Yoo, "Development of 31-inch full-HD AMOLED TV using LTPS-TFT and RGB FMM," SID Symp. Dig. Tech. Papers (2009) pp. 802-804.

M. Thomschke, M. Furno, B. Luessem, K. Leo, "Highly efficient inverted top-emitting organic electroluminescent devices with doped charge transport layers," Proc. SPIE (2010) pp. 77220R.

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