SIMULTANEOUS DETERMINATION OF CARRIER LIFETIME AND NET DOPANT CONCENTRATION OF SILICON WAFERS FROM PHOTOLUMINESCENCE

被引：12
|
作者：
Giesecke, J. A. [1 ]
Walter, D. [1 ]
Kopp, F. [1 ]
Rosenits, P. [1 ]
Schubert, M. C. [1 ]
Warta, W. [1 ]
机构：
[1] Fraunhofer Inst Solar Energy Syst, D-79110 Freiburg, Germany
来源：
35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE | 2010年
关键词：
D O I：
10.1109/PVSC.2010.5617178
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：
A simultaneous determination of injection dependent minority carrier lifetime and net dopant concentration in crystalline silicon wafers from quasi-steady-state photoluminescence (QSSPL) is theoretically derived and experimentally implemented. The time shift between maxima of a time modulated irradiation intensity and the respective photoluminescence intensity is linked to effective minority carrier lifetime. In addition, the ratio of peak curvatures of irradiation intensity and photoluminescence intensity reveals the net dopant concentration of the respective material. Thus, we found a luminescence based technique to determine injection dependent minority carrier lifetime in silicon wafers, which requires a priori information neither about carrier mobilities nor about net dopant concentration.
引用
收藏
页码：847 / 851
页数：5
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