標題: Low cost high-efficiency amorphous silicon solar cells with improved light-soaking stability
作者: Huang, Jung Y.
Lin, Chien Y.
Shen, Chang-Hong
Shieh, Jia-Min
Dai, Bau-Tong
光電工程學系
Department of Photonics
關鍵字: Solar cell;Amorphous silicon;Thin film photovoltaics;Light soaking
公開日期: 1-三月-2012
摘要: We investigate the performance of amorphous Si (a-Si) solar cells fabricated with Inductively Coupled Plasma (ICP) deposition technique. The ICP system produces a-Si films with low defect density (3 x 10(15) cm(-3)), resulting in a conversion efficiency of 9.6%. Deep level transient spectroscopy (DLTS) reveals that hole carriers trapped at defects near the valence band edge delocalize at 130 K: while trapped electrons can only be emitted into the conduction band near room temperature. Spectrally resolved DLTS study further indicates that light soaking enhances the emission rate of the tapped electrons near the conduction band edge while reduces the transition moments from the hole-trapping defect levels to the conduction band. The combined effects and light soaking-induced defects are responsible for the degradation of a thin film solar cell by light soaking. (C) 2011 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.solmat.2011.11.023
http://hdl.handle.net/11536/15601
ISSN: 0927-0248
DOI: 10.1016/j.solmat.2011.11.023
期刊: SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume: 98
Issue: 
起始頁: 277
結束頁: 282
顯示於類別:期刊論文


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  1. 000300536500039.pdf