Plasmonic-enhanced perovskite solar cells using alloy popcorn nanoparticles

Zelin Lu; Xujie Pan; Yingzhuang Ma; Yu Li; Lingling Zheng; Danfei Zhang; Qi Xu; Zhijian Chen; Shufeng Wang; Bo Qu; Fang Liu; Yidong Huang; Lixin Xiao; Qihuang Gong

doi:10.1039/C4RA16385K

Plasmonic-enhanced perovskite solar cells using alloy popcorn nanoparticles†

Zelin Lu,‡^a Xujie Pan,‡^b Yingzhuang Ma,^a Yu Li,^a Lingling Zheng,^a Danfei Zhang,^a Qi Xu,^b Zhijian Chen,^ac Shufeng Wang,*^ac Bo Qu,^ac Fang Liu,*^b Yidong Huang,^b Lixin Xiao*^ac and Qihuang Gong^a

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* Corresponding authors

^a State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871, China
E-mail: wangsf@pku.edu.cn, xiao66@pku.edu.cn

^b Department of Electronic Engineering, Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China
E-mail: liu_fang@tsinghua.edu.cn

^c New Display Device and System Integration Collaborative Innovation Center of the West Coast of the Taiwan Strait, Fuzhou 350002, China

Abstract

This article demonstrates a significant broadband enhancement of light absorption and improvement of photon-generated-charge transfer in CH₃NH₃PbI₃ perovskite solar cells by incorporating plasmonic Au–Ag alloy popcorn-shaped nanoparticles (NPs). Compared to conventional nanoparticles and nanorods, these popcorn-shaped NPs have many fine structures. The device's maximum power conversion efficiency (PCE) increases from 8.9% to 10.3%, namely 15.7% enhancement, with the aid of plasmonic popcorn-shaped NPs.

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Plasmonic-enhanced perovskite solar cells using alloy popcorn nanoparticles†

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