Title :
Diagnosing tandem cells [photovoltaics]
Author :
Hou, Jingya ; Fonash, Stephen J. ; Ghosh, Malathi ; Xi, Jianping ; Liu, Tongyu ; Kampas, Frank
Author_Institution :
Lab. of Electron. Mater. & Process. Res., Pennsylvania State Univ., University Park, PA, USA
Abstract :
In this paper, the authors report three new diagnostic techniques for identifying problem areas in tandem solar cells. These techniques can be easily extended to diagnosing triple junction solar cells. They applied these techniques to diagnose an a-Si:H based tandem solar cell having an extraordinarily low Voc. As they demonstrated, the assessments of the problem in this cell produced by each of the authors´ diagnostic approaches agree well with each other
Keywords :
amorphous semiconductors; elemental semiconductors; fault diagnosis; hydrogen; p-n heterojunctions; semiconductor device testing; semiconductor doping; silicon; solar cells; Si:H; a-Si:H; diagnostic techniques; measurement techniques; open circuit voltage; photovoltaics; tandem solar cells; test methods; Current measurement; Energy conversion; Graphics; Laboratories; Manufacturing; Photovoltaic cells; Photovoltaic systems; Stability; Testing; Voltage measurement;
Conference_Titel :
Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
0-7803-1460-3
DOI :
10.1109/WCPEC.1994.519994
