Nanoparticle‐Based Cu 2 ZnSn(S,Se) 4  Solar Cells With a 9.1% Efficiency Obtained by an Optimization of Sintering Process | Zendy

Zhang Yiwen | Zendy; Satake Tetsuo | Zendy; Furuta Kaoru | Zendy; Yin Ming | Zendy; Sugimoto Kanta | Zendy; Suyama Naoki | Zendy; Yamada Akira | Zendy

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Nanoparticle‐Based Cu 2 ZnSn(S,Se) 4 Solar Cells With a 9.1% Efficiency Obtained by an Optimization of Sintering Process

Author(s) -

Zhang Yiwen,

Satake Tetsuo,

Furuta Kaoru,

Yin Ming,

Sugimoto Kanta,

Suyama Naoki,

Yamada Akira

Publication year - 2017

Publication title -

solar rrl

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.544

H-Index - 37

ISSN - 2367-198X

DOI - 10.1002/solr.201700063

Subject(s) - sintering , materials science , nanoparticle , layer (electronics) , solar cell , chemical engineering , coating , selenium , graphite , thin film solar cell , metallurgy , energy conversion efficiency , nanotechnology , optoelectronics , engineering

The sintering process of Cu 2 ZnSn(S,Se) 4 (CZTSSe) films coated on Mo substrates is optimized by using a selenium/sulfur mixture atmosphere and a designed graphite box. Structural characterization indicates that this optimization is advantageous in reducing the thickness of high resistance Mo(S,Se) 2 layer. In addition, Cu content contained in the CdS layer is significantly decreased compared with that obtained by the selenium sintering. An active area efficiency of 9.1% CZTSSe solar cell (without anti‐reflective coating and light soaking) is achieved, demonstrating that the improvement of the Mo/CZTSSe and CZTSSe/CdS interfaces leads to an increased conversion efficiency.

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