期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 95, 期 10, 页码 2924-2927出版社
ELSEVIER
DOI: 10.1016/j.solmat.2011.05.031
关键词
Chalcopyrites; Electrical conductivity; Mobility; Semiconductor compounds; Density functional theory; p-Type transparent materials
资金
- National 973 Program of China [2007CB936704, 2009CB939903]
- National Science Foundation of China [50821004, 20901083, 50902143]
- Innovation Program of Shanghai Institute of Ceramics [O93ZC6160G]
As potential critical p-type transparency electrode materials applied in solar cells, a series of the Cu- and Zn-doped CuAlS2 samples with band gaps over 3 eV have been prepared, and their optical and electrical properties have been thoroughly investigated. Conductivities as high as 250 S cm(-1) are achieved at a Cu doping level of 8 mol%, which are among the highest values known for p-type transparent materials and sufficient for collecting holes in solar cells. A high mobility of 21.2 cm(2) V-1 s(-1) is also reached at the same doping level. The origin of conductivity enhancement by Cu doping and the structure-optoelectrical property relationship has been elucidated. (C) 2011 Elsevier B.V. All rights reserved.
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