12.0% Efficiency on Large-Area, Encapsulated, Multijunction nc-Si:H-Based Solar Cells

被引：35

作者：

Banerjee, Arindam ^{[1
]}

Liu, Frank Shengzhong ^{[2
]}

Beglau, Dave ^{[1
]}

Su, Tining ^{[1
]}

Pietka, Ginger ^{[1
]}

Yang, Jeff ^{[1
]}

Guha, Subhendu ^{[1
]}

机构：

[1] United Solar Ovon LLC, Troy, MI 48084 USA

[2] United Solar Ovon LLC, Troy, MI 48326 USA

来源：

IEEE JOURNAL OF PHOTOVOLTAICS | 2012年 / 2卷 / 02期

关键词：

Amorphous; nanocrystalline; photovoltaic; silicon; solar cells; thin film;

D O I：

10.1109/JPHOTOV.2011.2181823

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Because of its superior long-wavelength response and stability against light-induced degradation, hydrogenated nanocrystalline silicon (nc-Si:H) has become a promising candidate to replace hydrogenated amorphous silicon-germanium alloy (a-SiGe:H) in multijunction thin-film silicon solar cells. In this paper, we report on the development of our proprietary high-frequency (HF) glow discharge deposition technology for nc-Si:H solar cells that has resulted in high-quality nc-Si: H materials with good spatial uniformity. We studied the HF-deposited nc-Si: H material using various analytical techniques. We fabricated a-Si:H/nc-Si:H/nc-Si:H triple-junction solar cells that are deposited on textured Ag/ZnO back reflectors. Large-area cells were fabricated and encapsulated using our proprietary lightweight flexible encapsulants. National Renewable Energy Laboratory (NREL) has confirmed 1) initial aperture-area efficiency of 11.8% on an 807.8-cm(2) encapsulated cell and 2) stable aperture-area efficiency of 11.2% on a 400-cm(2) encapsulated cell.

引用

页码：104 / 108

页数：5

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