Indepth Studies on Working Mechanism of Plasmon-Enhanced Inverted Perovskite Solar Cells Incorporated with Ag@SiO2 Core-Shell Nanocubes

Xiaoqian Ma, Ben Ma, Tianyan Yu, Xin Xu, Liuquan Zhang, Wei Wang, Kun Cao, Lingling Deng, Shufen Chen, Wei Huang

科研成果: 期刊稿件文章同行评审

22 引用 (Scopus)

摘要

Noble metal nanoparticles-induced localized surface plasmon resonance as a useful approach has been widely used in solar cells including perovskite solar cells (PSCs) to improve their light-harvesting. Herein, we synthesize Ag SiO2 core-shell nanocubes and investigate their application in CH3NH3PbI3-based PSCs due to both the large local EM field induced by the nanocube with sharp corners and the effective avoidance of exciton/carrier recombination at the surfaces of Ag nanocubes via covering a 5 nm ultrathin SiO2 shell. Incorporating an appropriate concentration of Ag SiO2 nanocubes into the CH3NH3PbI3 PSCs realizes a best-performing efficiency of 17.22% with an enhancement factor of 18.1%. Indepth studies on the plasmon-enhanced working mechanism of AgSiO2 nanocubes with UV-vis absorption spectra, steady-state and time-resolved transient photoluminescence, and electrochemical impedance spectroscopy characterizations eventually demonstrate both the increasing light harvesting and the improving charge transportation and extraction contribute to better performances of PSCs.

源语言英语
页(从-至)3605-3613
页数9
期刊ACS Applied Energy Materials
2
5
DOI
出版状态已出版 - 28 5月 2019

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