Nanoimprinting for diffractive light trapping in solar cells

被引：8

作者：

Weiss, Dirk N. ^{[1
]}

Yuan, Hao-Chih ^{[2
]}

Lee, Benjamin G. ^{[2
]}

Branz, Howard M. ^{[2
]}

Meyers, Stephen T. ^{[3
]}

Grenville, Andrew ^{[3
]}

Keszler, Douglas A. ^{[4
]}

机构：

[1] Univ Washington, Washington Technol Ctr, Seattle, WA 98195 USA

[2] Natl Renewable Energy Lab, Golden, CO 80401 USA

[3] Inpria Corp, Corvallis, OR 97330 USA

[4] Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2010年 / 28卷 / 06期

基金：

美国国家科学基金会;

关键词：

CRYSTALLINE SILICON; ENHANCEMENT; ABSORPTION; GRATINGS;

D O I：

10.1116/1.3498754

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The authors investigate the light-trapping efficiency of nanoimprinted ceramic grating reflectors for crystal silicon photovoltaic cells. Using 25 mu m silicon wafers as a model system and hemispherical reflection measurements, they demonstrate a 4%-6% increase in AM 1.5 solar-photon absorption for one-dimensional square and sinusoidal gratings compared to flat reflectors. The extrapolated increase in a short-circuit current for a 2 mu m thick silicon film cell due to diffractive light trapping is 20%. (C) 2010 American Vacuum Society. [DOI:10.1116/1.3498754]

引用

页码：C6M98 / C6M103

页数：6

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