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Journal of NanomaterialsVolume 2013 2013, Article ID 870254, 4 pages

Research Article

School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 20093, China

School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200235, China

Received 14 June 2013; Accepted 5 September 2013

Academic Editor: Wen Lei

Copyright © 2013 Y. Y. Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An organic-inorganic light-emitting diode LED consisting of n-type vertically aligned ZnO nanowires NWs and p-type proton acid doped polyaniline PANi is reported. The device was fabricated on flexible indium-tin-oxide ITO coated polyethylene terephthalate PET substrate. A broad blue light emission band ranging from 390 nm to 450 nm was observed in the electroluminescence EL spectra of the device, which was related to the interface recombination of electrons in the conduction band of ZnO NWs and holes in the polaron level of PANi. The turn-on voltage of the device is ~3.5 V, lower than most of ZnO NWs based LED devices. In combination with the easy fabrication, flexibility, low power consumption, and mechanical robustness, this novel device is very promising in the application of blue LEDs.





Autor: Y. Y. Liu, X. Y. Wang, Y. Cao, X. D. Chen, S. F. Xie, X. J. Zheng, and H. D. Zeng

Fuente: https://www.hindawi.com/



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