Global optimization of silicon photovoltaic cell front coatings

被引：21

作者：

Ghebrebrhan, Michael ^{[1
]}

Bermel, Peter ^{[1
]}

Avniel, Yehuda ^{[1
]}

Joannopoulos, John D. ^{[1
]}

Johnson, Steven G. ^{[1
]}

机构：

[1] MIT, Dept Phys, Cambridge, MA 02139 USA

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 09期

基金：

美国国家科学基金会;

关键词：

ANTIREFLECTION COATINGS; ABSORPTION ENHANCEMENT; SOLAR-CELL; DESIGN; EFFICIENCY; MULTICRYSTALLINE; LAYER;

D O I：

10.1364/OE.17.007505

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The front-coating (FC) of a solar cell controls its efficiency, determining admission of light into the absorbing material and potentially trapping light to enhance thin absorbers. Single-layer FC designs are well known, especially for thick absorbers where their only purpose is to reduce reflections. Multilayer FCs could improve performance, but require global optimization to design. For narrow bandwidths, one can always achieve nearly 100% absorption. For the entire solar bandwidth, however, a second FC layer improves performance by 6.1% for 256 mu m wafer-based cells, or by 3.6% for 2 mu m thin-film cells, while additional layers yield rapidly diminishing returns. (c) 2009 Optical Society of America

引用

页码：7505 / 7518

页数：14

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[1] TRANSMISSION, REFLECTION AND ABSORPTION OF VISIBLE RADIATION BY THE MULTIPLE COVERS OF FLAT-PLATE SOLAR COLLECTORS [J].