Effect of Front TCO Layer on Properties of Substrate-Type Thin-Film Microcrystalline Silicon Solar Cells

Power conversion efficiency of thin-film microcrystalline silicon solar cells has been remarkably improved recently: from 10.1% to 11.8%. Front transparent conductive oxide (TCO) films have played an important role in this efficiency improvement. In this study, the impact of the front TCO films was...

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Bibliographic Details
Published in:IEEE journal of photovoltaics 2015-11, Vol.5 (6), p.1528-1533
Main Authors: Sai, Hitoshi, Maejima, Keigo, Matsui, Takuya, Koida, Takashi, Matsubara, Koji, Kondo, Michio, Takeuchi, Yoshiaki, Sugiyama, Shuichiro, Katayama, Hirotaka, Yoshida, Isao
Format: Article
Language:English
Subjects:
Conductive films
Light trapping
Photovoltaic cells
Silicon
Thin film devices
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Summary:Power conversion efficiency of thin-film microcrystalline silicon solar cells has been remarkably improved recently: from 10.1% to 11.8%. Front transparent conductive oxide (TCO) films have played an important role in this efficiency improvement. In this study, the impact of the front TCO films was investigated by comparing microcrystalline silicon solar cells with In 2 O 3 :Sn films grown by sputtering and ZnO:B films grown by metal-organic chemical vapor deposition (MOCVD). Improvement mechanisms in open-circuit voltages and fill factors in solar cells are investigated and discussed.
ISSN:2156-3381
2156-3403
DOI:10.1109/JPHOTOV.2015.2478030