T. Nakada, Taizou Kobayashi, T. Kumazawa, H. Yamaguchi
{"title":"Impacts of post-treatments on cell performance of CIGS solar cells with Zn-compound buffer layers","authors":"T. Nakada, Taizou Kobayashi, T. Kumazawa, H. Yamaguchi","doi":"10.1109/pvsc-vol2.2013.6656766","DOIUrl":null,"url":null,"abstract":"Thepostdeposition treatments, such as ammonia rinsing, light soaking, and heat light soaking on cell performances of Cu(In,Ga)Se2 (CIGS) solar cells with Zn-compound buffer layers, are investigated. The impacts of these treatments are discussed in connection with the band alignment at the transparent conducting oxide (TCO)/buffer/CIGS interface. Three types of CIGS solar cells with sputter-deposited ZnO:Al/CBD-ZnS(O,OH), MOCVD-ZnO:B/CBD-ZnS(O,OH), and MOCVD-ZnO:B/ALD-Zn(O,S) are investigated in this paper. The importance of the combination of buffer/TCO materials and deposition processes is discussed. We demonstrate that the adjustment of an S/(S+O) atomic ratio relevant to the band alignment at the buffer/CIGS interface is critical to achieve high-efficiency CIGS solar cells with Zn-compound buffer layer.","PeriodicalId":6420,"journal":{"name":"2012 IEEE 38th Photovoltaic Specialists Conference (PVSC) PART 2","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE 38th Photovoltaic Specialists Conference (PVSC) PART 2","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/pvsc-vol2.2013.6656766","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
Thepostdeposition treatments, such as ammonia rinsing, light soaking, and heat light soaking on cell performances of Cu(In,Ga)Se2 (CIGS) solar cells with Zn-compound buffer layers, are investigated. The impacts of these treatments are discussed in connection with the band alignment at the transparent conducting oxide (TCO)/buffer/CIGS interface. Three types of CIGS solar cells with sputter-deposited ZnO:Al/CBD-ZnS(O,OH), MOCVD-ZnO:B/CBD-ZnS(O,OH), and MOCVD-ZnO:B/ALD-Zn(O,S) are investigated in this paper. The importance of the combination of buffer/TCO materials and deposition processes is discussed. We demonstrate that the adjustment of an S/(S+O) atomic ratio relevant to the band alignment at the buffer/CIGS interface is critical to achieve high-efficiency CIGS solar cells with Zn-compound buffer layer.