Polymer light-emitting devices using poly(ethylene oxide) as an electron injecting layer

M. V. Madhava Rao; Tsung-Syun Huang; Yan-Kuin Su; Yan-Kuin Tu; Chun-Yuan Huang; Shang-Shung Wu

doi:10.1007/BF03353617

Issue

Vol. 2 No. 1 (2010)

Issue Published : Jan 1, 2010

Polymer light-emitting devices using poly(ethylene oxide) as an electron injecting layer

https://doi.org/10.1007/BF03353617

M. V. Madhava Rao

Institute of Microelectronics, Department of Electrical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, 701, Taiwan, ROC

Tsung-Syun Huang

Institute of Microelectronics, Department of Electrical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, 701, Taiwan, ROC

Yan-Kuin Su

Institute of Microelectronics, Department of Electrical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, 701, Taiwan, ROC

Yan-Kuin Tu

Institute of Microelectronics, Department of Electrical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, 701, Taiwan, ROC

Chun-Yuan Huang

Institute of Microelectronics, Department of Electrical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, 701, Taiwan, ROC

Shang-Shung Wu

Institute of Microelectronics, Department of Electrical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, 701, Taiwan, ROC

Corresponding Author: M. V. Madhava Rao

madhavmora@yahoo.com

Nano-Micro Letters, Vol. 2 No. 1 (2010), Article Number: 49-52
Article Published : Mar 31, 2010

Abstract

The performance of polymer light emitting devices (PLEDs) based on polyvinyl carbazole (PVK) is improved by introducing a nanoscale interfacial thin layer, made of poly(ethylene oxide) (PEO), between the calcium cathode and the PVK emissive layer. It is believed that the PEO layer plays a key role in enhancing the device performance. In comparison to the device with Ca/Al as the cathode, the performance of the PLED with PEO/Ca/Al cathode, including the driving voltage, luminance efficiency is significantly improved. These improvements are attributed to the introduction of a thin layer of PEO that can lower the interfacial barrier and facilitate electron injection.

Keywords

Polymer light emitting devices Electron injection layer Electroluminescence

Rao, M. V. Madhava, Tsung-Syun Huang, Yan-Kuin Su, Yan-Kuin Tu, Chun-Yuan Huang, and Shang-Shung Wu. 2010. “Polymer Light-Emitting Devices Using poly(ethylene Oxide) As an Electron Injecting Layer”. Nano-Micro Letters 2 (1):49-52. https://doi.org/10.1007/BF03353617.

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References

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D. Braun and A. J. Heeger, Appl. Phys. Lett. 58, 1982 (1991). doi:10.1063/1.105039

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H. S. Yang and P. H. Holloway, J. Phys. Chem. B 107, 9705 (2003). doi:10.1021/jp034749i

F. S. Li, Z. J. Chen, W. Wei and Q. H. Gong, Org. Electron. 6, 237 (2005). doi:10.1016/j.orgel.2005.08.002

C. Tengstedt, A. Crispin, C. H. Hsu, C. Zhang, D. Parker, W. R. Salaneck and M. Fahlman, Org. Elect. 6, 21 (2005). doi:10.1016/j.orgel.2005.02.001

S. Coe. Sulliyan, W. K. Woo, J. S. Steckel, M. Bawendi and V. Bulovic, Org. Elect. 4, 123 (2003).

M. Cocchi, J. Kalinowski, D. Virgili and J. A. G. Williams, Appl. Phys. Lett. 92, 113302 (2008). doi:10.1063/1.289 8159

I. D. Parker, Y. Cao and C. Y. Yang, J. Appl. Phys. 85, 2441 (1999). doi:10.1063/1.369564

L. S. Hung, C. W. Tang and M. G. Mason, Appl. Phys. Lett. 70, 152 (1997). doi:10.1063/1.118344

Y. Cao, G. Yuand and A. J. Heeger, Adv. Mater. 10, 917 (1998). doi:10.1002/(SICI)1521-4095(199808)10:12<917: AID-ADMA917>3.0.CO;2-K

P. Piromerium, H. Oh, Y. Shen, G. G. Malliaras, J. C. Scott and P.J. Brock, Appl. Phys. Lett. 77, 2403 (2000). doi:10.1063/1.1317547

F. Li, H. Tang, J. Anderegg and J. Shinar, Appl. Phys. Lett. 70, 1233 (1997). doi:10.1063/1.118539

H. M. Lee, K. H. Choi, D. H. Hwang, L. M. Do, T. Zyung, J. W. Lee and J. K. Park, Appl. Phys. Lett. 72, 2382 (1998). doi:10.1063/1.121363

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J. W. Stouwdam and R. A. J. Janssen, J. Mater. Chem. 18, 1889 (2008). doi:10.1039/b800028j

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R. K. Ligman, L. Mangolini, U. R. Kortshagen and S. A. Campbell, Appl. Phys. Lett. 90, 061116 (2007). doi:10. 1063/1.2471662

Issue

Vol. 2 No. 1 (2010)

Polymer light-emitting devices using poly(ethylene oxide) as an electron injecting layer

Corresponding Author: M. V. Madhava Rao

Abstract

Keywords

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References

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