Investigating the Role of Grain Boundaries in CZTS and CZTSSe Thin Film Solar Cells with Scanning Probe Microscopy

被引：306
作者：
Li, Joel B. [2 ]
Chawla, Vardaan [1 ]
Clemens, Bruce M. [1 ]
机构：
[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA
[2] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA
来源：
ADVANCED MATERIALS | 2012年 / 24卷 / 06期
关键词：
CU(IN; GA)SE-2; PERFORMANCE; CUINSE2; SODIUM;
D O I：
10.1002/adma.201103470
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Scanning Kelvin probe microscopy (SKPM) measurements reveal a higher positive surface potential at the grain boundaries (GBs) as compared to the grain while conductive atomic force microscopy (C-AFM) measurements show higher current flow in the vicinity of the GBs of Cu2ZnSnS4 (CZTS) and Cu2ZnSn(S, Se)(4) (CZTSSe). These results demonstrate the enhanced minority carrier collection taking place at the GBs of CZTS and CZTSSe.
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页码：720 / +
页数：5
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