Symmetry-dependence of electronic grain boundary properties in polycrystalline CuInSe2 thin films

被引:32
作者
Baier, Robert [1 ]
Abou-Ras, Daniel [1 ]
Rissom, Thorsten [1 ]
Lux-Steiner, Martha Ch [1 ]
Sadewasser, Sascha [1 ]
机构
[1] Helmholtz Zentrum Berlin Mat & Energie, D-14109 Berlin, Germany
关键词
MICROSCOPY;
D O I
10.1063/1.3652915
中图分类号
O59 [应用物理学];
学科分类号
摘要
The symmetry-dependence of electronic grain boundary (GB) properties in polycrystalline CuInSe2 thin films was investigated in a combined study applying scanning electron microscopy, electron backscatter diffraction, and Kelvin probe force microscopy. We find that highly symmetric Sigma 3 GBs have a higher probability to be charge neutral than lower symmetric non-Sigma 3 GBs. This symmetry-dependence can help to explain the large variations of electronic properties found for GBs in Cu(In,Ga) Se-2. (C) 2011 American Institute of Physics. [doi:10.1063/1.3652915]
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页数:3
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