Geometric light trapping for high efficiency thin film silicon solar cells

被引：89

作者：

Escarre, Jordi ^{[1
]}

Soederstroem, Karin ^{[1
]}

Despeisse, Matthieu ^{[1
]}

Nicolay, Sylvain ^{[1
]}

Battaglia, Corsin ^{[1
]}

Bugnon, Gregory ^{[1
]}

Ding, Laura ^{[1
]}

Meillaud, Fanny ^{[1
]}

Haug, Franz-Josef ^{[1
]}

Ballif, Christophe ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Microengn IMT, Photovolta & Thin Film Elect Lab, CH-2000 Neuchatel, Switzerland

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2012年 / 98卷

关键词：

Solar cells; Thin film; Light trapping; Anti-reflective effect; UV imprinting; MODULE;

D O I：

10.1016/j.solmat.2011.10.031

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：

080707 [能源环境工程]; 082001 [油气井工程];

摘要：

The imprinting of random square based pyramidal textures with micrometric scale at the air/glass interface of thin film silicon solar cells is presented as an efficient alternative to anti-reflective coatings to minimize reflection losses at the cell entrance. This novel processing step, which can be applied after cell or module manufacture, is found to simultaneously enhance light in-coupling and light-trapping in amorphous silicon/microcrystalline silicon tandem solar cells. A remarkable total current gain of more than 5% is demonstrated with the imprinting of such structures, resulting in a tandem cell with a high initial efficiency of 13% for a total absorber layer thickness below 1.5 mu m. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：185 / 190

页数：6

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