Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801, United States.
Department of Energy Systems Research, Ajou University, Suwon, 16499, Korea.
Sci Rep. 2017 Sep 6;7(1):10640. doi: 10.1038/s41598-017-10937-3.
Highly efficient colored perovskite solar cells that exploit localized surface plasmon resonances in ultrathin subwavelength plasmonic nanoresonators are demonstrated. Localized resonances in ultrathin metal nano-strip optical resonators consisting of an array of metallic subwavelength nanowires on a transparent substrate, fabricated by using low-cost nanoimprint lithography over a large area, lead to a sharp peak in a reflection spectrum for distinctive color generation with angle-insensitive property up to 60°, and simultaneously transmit the complementary spectrum of visible light that can be efficiently harvested by the perovskite solar cells for electric power generation. The plasmonic color filter-integrated perovskite solar cells provide 10.12%, 8.17% and 7.72% of power conversion efficiencies with capabilities of creating vivid reflective red, green and blue colors. The scheme described in this work could be applied to a variety of applications such as power-generating decorations, tandem cells, power-saving wearable devices and energy-efficient reflective display technologies.
本文展示了在超薄亚波长等离子体纳米谐振器中利用局域表面等离子体共振的高效彩色钙钛矿太阳能电池。通过在大面积上使用低成本的纳米压印光刻技术在透明衬底上制造的由金属亚波长纳米线组成的超薄金属纳米条光学谐振器中的局域共振导致反射光谱中出现尖锐的峰值，从而产生具有 60°角度不敏感特性的独特颜色，同时传输可见光的互补光谱，这些光谱可以被钙钛矿太阳能电池有效收集用于发电。集成了等离子体色滤光片的钙钛矿太阳能电池提供了 10.12%、8.17%和 7.72%的功率转换效率，并具有产生鲜艳的反射红色、绿色和蓝色的能力。这项工作中描述的方案可以应用于各种应用，例如发电装饰、串联电池、节能可穿戴设备和高效节能反射显示技术。
