Triple-junction thin-film silicon solar cell fabricated on periodically textured substrate with a stabilized efficiency of 13.6

We report a high-efficiency triple-junction thin-film silicon solar cell fabricated with the so-called substrate configuration. It was verified whether the design criteria for developing single-junction microcrystalline silicon (μc-Si:H) solar cells are applicable to multijunction solar cells. Furth...

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Bibliographic Details
Published in:Applied physics letters 2015-05, Vol.106 (21)
Main Authors: Sai, Hitoshi, Matsui, Takuya, Koida, Takashi, Matsubara, Koji, Kondo, Michio, Sugiyama, Shuichiro, Katayama, Hirotaka, Takeuchi, Yoshiaki, Yoshida, Isao
Format: Article
Language:English
Subjects:
Applied physics
Circuits
Efficiency
Photovoltaic cells
Short circuit currents
Silicon
Solar cells
Substrates
Thin films
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Summary:We report a high-efficiency triple-junction thin-film silicon solar cell fabricated with the so-called substrate configuration. It was verified whether the design criteria for developing single-junction microcrystalline silicon (μc-Si:H) solar cells are applicable to multijunction solar cells. Furthermore, a notably high short-circuit current density of 32.9 mA/cm2 was achieved in a single-junction μc-Si:H cell fabricated on a periodically textured substrate with a high-mobility front transparent contacting layer. These technologies were also combined into a-Si:H/μc-Si:H/μc-Si:H triple-junction cells, and a world record stabilized efficiency of 13.6% was achieved.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4921794