Stability of large-area amorphous silicon alloy tandem solar modules

Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996 Pub Date : 1996-05-13 DOI:10.1109/PVSC.1996.564332

L. Chen, F. Willing, L. Yang, Y. Li, N. Maley, K. Rajan, M. Bennett, R. Arya

{"title":"Stability of large-area amorphous silicon alloy tandem solar modules","authors":"L. Chen, F. Willing, L. Yang, Y. Li, N. Maley, K. Rajan, M. Bennett, R. Arya","doi":"10.1109/PVSC.1996.564332","DOIUrl":null,"url":null,"abstract":"A dual bandgap, dual junction a-Si:H/a-SiGe:H solar cell has been selected as the structure to be used in Solarex's new 10 MW solar module plant. This structure offers high initial efficiency, good stability, low material usage, and short deposition time. Thousands of one square foot and four square foot tandem modules have been produced on the Solarex pilot line, and an average of 8% stabilized efficiency on 4 square foot modules in the trial production, and 8.6% on 1 square foot modules in R&D were achieved with this structure. Good agreement was found in the stability of modules tested outdoors and indoors, and also with an array of test modules set up at NREL. An improved tandem structure with better stability is being developed by optimizing the i-layer thickness and back junction bandgap. The current loss associated with thinner i-layers was well compensated by improvements in fill factor, open-circuit voltage, and stability. Two environmental degradation modes for modules other than Staebler-Wronski effect were identified and solutions implemented.","PeriodicalId":410394,"journal":{"name":"Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PVSC.1996.564332","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

A dual bandgap, dual junction a-Si:H/a-SiGe:H solar cell has been selected as the structure to be used in Solarex's new 10 MW solar module plant. This structure offers high initial efficiency, good stability, low material usage, and short deposition time. Thousands of one square foot and four square foot tandem modules have been produced on the Solarex pilot line, and an average of 8% stabilized efficiency on 4 square foot modules in the trial production, and 8.6% on 1 square foot modules in R&D were achieved with this structure. Good agreement was found in the stability of modules tested outdoors and indoors, and also with an array of test modules set up at NREL. An improved tandem structure with better stability is being developed by optimizing the i-layer thickness and back junction bandgap. The current loss associated with thinner i-layers was well compensated by improvements in fill factor, open-circuit voltage, and stability. Two environmental degradation modes for modules other than Staebler-Wronski effect were identified and solutions implemented.

查看原文本刊更多论文

大面积非晶硅合金串联太阳能组件的稳定性

双带隙、双结A - si:H/ A - sige:H太阳能电池已被选为Solarex新10兆瓦太阳能组件厂的结构。该结构具有初始效率高、稳定性好、材料用量少、沉积时间短等优点。在Solarex中试线上已经生产了数千个1平方英尺和4平方英尺的串联模块，在4平方英尺模块的试生产中平均稳定效率为8%，在1平方英尺模块的研发中平均稳定效率为8.6%。在室外和室内测试的模块的稳定性以及在NREL建立的一系列测试模块中发现了良好的一致性。通过优化i层厚度和后结带隙，开发了一种稳定性更好的改进串联结构。由于填充系数、开路电压和稳定性的提高，与薄i层相关的电流损失得到了很好的补偿。确定了除Staebler-Wronski效应外的两种环境退化模式，并实施了解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996

自引率

0.00%

发文量