Temperature-Dependent Electrical Characteristics of c-Si and CIGS Solar Cells

被引:1
作者
Choi, Pyung Ho [1 ]
Baek, Do Hyun [1 ]
Park, Hyoung Sun [1 ]
Kim, Sang Sub [1 ]
Yi, Jun Sin [1 ]
Kim, Sang Soo [1 ]
Choi, Byoung Deog [1 ]
机构
[1] Sungkyunkwan Univ, Coll Informat & Commun Engn, Suwon 440746, South Korea
关键词
C-Si Solar Cell; CIGS; Electrical Characterization; I-V; C-V; CURRENT TRANSPORT; PARAMETERS;
D O I
10.1166/jnn.2014.10145
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We characterized the electrical behavior of crystalline silicon (c-Si) and Cu(In1-xGax)Se-2 (CIGS) solar cells by current voltage (I-V) and capacitance voltage (C-V) methods. We investigated the temperature-dependent carrier transport mechanism by determining the parameters of ideality factor (n) and activation energy (E-a) deduced from I-V measurements. CIGS solar cells, as a function of temperature, showed drastic changes in n and Ea in the space charge region (SCR) that forms near the ZnS/CIGS interface. Furthermore, by using a C-V measured substrate doping profiling method, we confirmed that the CIGS absorption layer had a graded band-gap structure from the end point of the SCR to the CIGS/Mo back contacts, while c-Si solar cells had a uniformly doped carrier concentration.
引用
收藏
页码:9206 / 9209
页数:4
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