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通过结合金属光栅和抗反射涂层，在等离子体太阳能电池中实现了大的集成吸收增强。

Large integrated absorption enhancement in plasmonic solar cells by combining metallic gratings and antireflection coatings.

机构信息

Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology, Pasadena, California 91125, United States.

出版信息

Nano Lett. 2011 Jun 8;11(6):2195-201. doi: 10.1021/nl101875t. Epub 2010 Oct 14.

DOI:10.1021/nl101875t
PMID:20945845
Abstract

We describe an ultrathin solar cell architecture that combines the benefits of both plasmonic photovoltaics and traditional antireflection coatings. Spatially resolved electron generation rates are used to determine the total integrated current improvement under AM1.5G solar illumination, which can reach a factor of 1.8. The frequency-dependent absorption is found to strongly correlate with the occupation of optical modes within the structure, and the improved absorption is mainly attributed to improved coupling to guided modes rather than localized resonant modes.

摘要

我们描述了一种超薄的太阳能电池结构，它结合了等离子体光伏和传统抗反射涂层的优点。利用空间分辨电子产生率来确定在 AM1.5G 太阳光照下的总积分电流的改进，其可以达到 1.8 倍。发现频率相关的吸收与结构内光学模式的占据强烈相关，而吸收的提高主要归因于对导模的耦合增强而不是局域共振模式。

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