Optimized Spatial Correlations for Broadband Light Trapping Nanopatterns in High Efficiency Ultrathin Film a-Si:H Solar Cells

被引：321

作者：

Ferry, Vivian E. ^{[1
,2
]}

Verschuuren, Marc A. ^{[3
]}

van Lare, M. Claire ^{[1
]}

Schropp, Ruud E. I. ^{[4
]}

Atwater, Harry A. ^{[2
]}

Polman, Albert ^{[1
]}

机构：

[1] FOM Inst AMOLF, Ctr Nanophoton, NL-1098 XG Amsterdam, Netherlands

[2] CALTECH, Thomas J Watson Lab Appl Phys, Pasadena, CA 91125 USA

[3] Philips Res Labs, NL-5656 AE Eindhoven, Netherlands

[4] Univ Utrecht, Debye Inst Nanomat Sci, Sect Nanophoton, NL-3508 TA Utrecht, Netherlands

来源：

NANO LETTERS | 2011年 / 11卷 / 10期

关键词：

Thin film solar cells; surface plasmon polariton; light trapping; nanoimprint lithography; photovoltaics; silicon; ABSORPTION;

D O I：

10.1021/nl202226r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanophotonic structures have attracted attention for light trapping in solar cells with the potential to manage and direct light absorption on the nanoscale. While both randomly textured and nanophotonic structures have been investigated, the relationship between photocurrent and the spatial correlations of random or designed surfaces has been unclear. Here we systematically design pseudorandom arrays of nanostructures based on their power spectral density, and correlate the spatial frequencies with measured and simulated photocurrent. The integrated cell design consists of a patterned plasmonic back reflector and a nanostructured semiconductor top interface, which gives broadband and isotropic photo current enhancement.

引用

页码：4239 / 4245

页数：7

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