Photo-stability of a-Si solar cells fabricated by Liquid-Si printing method and treated with catalytic generated atomic hydrogen

THIN SOLID FILMS

卷:575

Article

Murayama, Hiroko¹  Ohyama, Tatsushi¹  Yoshida, Isao¹  Terakawa, Akira¹  Masuda, Takashi^2,3  Ohdaira, Keisuke²  Shimoda, Tatsuya^2,3 

[1] Panasonic Corp, Device Solut Ctr, Moriguchi, Osaka 5708501, Japan

[2] Japan Adv Inst Sci & Technol, Nomi City, Ishikawa 9231292, Japan

[3] JST ERATO Shimoda Nanoliquid Proc Project, Nomi City, Ishikawa 9231292, Japan

关键词: Amorphous Si;    Solar cells;    Stability;    Liquid-Si;    Cyclopentasilane;    Atomic hydrogen treatment;    Cat-CVD;   

DOI  :  10.1016/j.tsf.2014.10.034

来源: Elsevier

【 摘 要 】

The film properties and solar cell performances of hydrogenated amorphous silicon (a-Si:H) fabricated by a newly developed non-vacuum process Liquid-Si printing method were systematically investigated by comparing to the conventional plasma-chemical vapor deposition method. The as-printed a-Si:H films showed relatively high Urbach-tail characteristic energy (E-ch), high [Si-H-2]/[Si-H], and low photoconductivity (similar to 10(-7) S/cm). However, the [Si-H-2]/[Si-H] decreased, and the photoconductivity was improved to the device grade level (similar to 10(-5) S/cm) after appropriate catalytic-generated atomic hydrogen treatment. It was also found that the light-induced degradation of the photoconductivity and solar cell efficiency of the printed samples were less than half of the conventional a-Si: H case. (C) 2014 Elsevier B.V. All rights reserved.

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