Large Integrated Absorption Enhancement in Plasmonic Solar Cells by Combining Metallic Gratings and Antireflection Coatings
Large Integrated Absorption Enhancement in Plasmonic Solar Cells by Combining Metallic Gratings and Antireflection Coatings
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DOI：
10.1021/nl101875t
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发表时间：
2011-06-01
期刊：
影响因子：
10.8
通讯作者：
Atwater, Harry A.
中科院分区：
文献类型：
--
作者：
Munday, Jeremy N.;Atwater, Harry A.
我们描述了一种超薄太阳能电池架构，它结合了等离子光伏和传统减反射涂层的优点。空间分辨电子产生率被用来确定在AM1.5G太阳照射下的总积分电流改善，可以达到1.8倍。与频率相关的吸收与结构中光学模式的占据密切相关，并且吸收的改善主要归因于与导模的耦合改善，而不是局域共振模式。
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.