Shunts due to laser scribing of solar cells evaluated by highly sensitive lock-in thermography

被引:79
作者
Breitenstein, O
Langenkamp, M
Lang, O
Schirrmacher, A
机构
[1] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany
[2] SOLARC, D-13355 Berlin, Germany
[3] LMTB, D-12489 Berlin, Germany
关键词
shunts; characterization; thermography; silicon solar cells; laser cutting;
D O I
10.1016/S0927-0248(00)00077-5
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Using a 217 Hz focal plane array (FFA) thermocamera attached to two parallel-running DSP frame grabber boards in a PC, a highly sensitive lock-in thermography system has been built, enabling the detection of periodic surface temperature oscillations below 10 muK (r.m.s). This system has been used to investigate edge leakage currents in silicon solar cells after laser scribing and cleavage. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
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页码:55 / 62
页数:8
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