High mobility transparent conducting oxides for thin film solar cells

被引:392
作者
Calnan, S. [1 ]
Tiwari, A. N. [2 ]
机构
[1] Univ Loughborough, Dept Elect & Elect Engn, Ctr Renewable Energy Syst Technol, Loughborough LE11 3TU, Leics, England
[2] Swiss Fed Labs Mat Testing & Res EMPA, Lab Thin Films & Photovolta, CH-8600 Dubendorf, Switzerland
关键词
Transparent conducting oxide; High mobility; Solar cells; DOPED IN2O3 FILMS; DOPANT ION SIZE; ELECTRICAL-PROPERTIES; ZINC-OXIDE; OPTICAL-PROPERTIES; LOW-RESISTIVITY; ZNO; POLYCRYSTALLINE; CDO; DEPOSITION;
D O I
10.1016/j.tsf.2009.09.044
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A special class of transparent conducting oxides (TCO) with high mobility of >65 cm(2) V-1 s(-1) allows film resistivity in the low 10(-4) Omega cm range and a high transparency of > 80% over a wide spectrum, from 300 nm to beyond 1500 nm. This exceptional coincidence of desirable optical and electrical properties provides opportunities to improve the performance of opto-electronic devices and opens possibilities for new applications. Strategies to attain high mobility (HM) TCO materials as well as the current status of such materials based on indium and cadmium containing oxides are presented. Various concepts used to understand the underlying mechanisms for high mobility in HMTCO films are discussed. Examples of HMTCO layers used as transparent electrodes in thin film solar cells are used to illustrate possible improvements in solar cell performance. Finally, challenges and prospects for further development of HMTCO materials are discussed. (C) 2009 Elsevier B.V. All rights reserved
引用
收藏
页码:1839 / 1849
页数:11
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