Gallium and indium co-doped ZnO thin films for white light emitting diodes

被引:20
作者
Chirakkara, Saraswathi [1 ]
Krupanidhi, S. B. [1 ]
机构
[1] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India
来源
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2012年 / 6卷 / 01期
关键词
ZnO; doping; multilayers; photoluminescence;
D O I
10.1002/pssr.201105455
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ga and In co-doped ZnO (GIZO) thin films together with ZnO, In-doped ZnO (IZO), Ga-doped ZnO (GZO), and IZO/GZO multilayer for comparison, were grown on corning glass and boron doped Si substrates by PLD. The photoluminescence spectra of GIZO showed a strong white light emission and the current-voltage characteristics showed relatively lower turn-on voltage and larger forward current. The CIE coordinates for GIZO were observed to be (0.31, 0.33) with a correlated colour temperature of 6650 K, indicating a cool white light, and establishing a possibility of white light emitting diodes. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码:34 / 36
页数:3
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