Sb-doped p-ZnO/Ga-doped n-ZnO homojunction ultraviolet light emitting diodes

被引:120
作者
Chu, S. [1 ]
Lim, J. H. [1 ]
Mandalapu, L. J. [1 ]
Yang, Z. [1 ]
Li, L. [1 ]
Liu, J. L. [1 ]
机构
[1] Univ Calif Riverside, Dept Elect Engn, Quantum Struct Lab, Riverside, CA 92521 USA
关键词
D O I
10.1063/1.2908968
中图分类号
O59 [应用物理学];
学科分类号
摘要
ZnO p-n homojunction light emitting diodes were fabricated based on p-type Sb-doped ZnO/n-type Ga-doped ZnO thin films. Low resistivity Au/NiO and Au/Ti contacts were formed on top of p-type and n-type ZnO layers, respectively. Au/NiO contacts on p-type ZnO exhibited a low specific resistivity of 7.4x10(-4) Omega cm(2). The light emitting diodes yielded strong near-band-edge emissions in temperature-dependent and injection current-dependent electroluminescence measurements. (C) 2008 American Institute of Physics.
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页数:3
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