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Published on: April 25, 2018
Semi-transparent all-oxide ultraviolet light-emitting diodes based on ZnO/NiO-core/shell nanowires
Zhi-Feng Shi1, Ting-Ting Xu, Di Wu
1Department of Physics and Laboratory of Material Physics, Zhengzhou University, Zhengzhou 450052, China. lixj@zzu.edu.cn.
Abstract:
Semi-transparent all-oxide light-emitting diodes based on ZnO/NiO-core/shell nanowire structures were prepared on double-polished c-Al2O3 substrates. The entire heterojunction diode showed an average transparency of ∼65% in the ultraviolet and visible regions. Under forward bias, the diode displayed an intense ultraviolet emission at ∼382 nm, and its electroluminescence performance was remarkable in terms of a low emission onset, acceptable operating stability, and the ability to optically excite emissive semiconductor nanoparticle chromophores.
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