Efficient plasmon-enhanced perovskite solar cells by molecularly isolated gold nanorods  

作　　者：Yong Hui En-Ming You Qing-Peng Luo Tan Wang Zi-Ang Nan Yu Gu Wen-Han Zhang Zhuan-Yun Cai Liang Chen Jian-Zhang Zhou Jia-Wei Yan Zhao-Xiong Xie Bing-Wei Mao Zhong-Qun Tian 

机构地区：[1]State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry,College of Chemistry and Chemical Engineering,Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM),Xiamen University,Xiamen 361005,Fujian,China [2]School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200241,China

出　　处：《Journal of Energy Chemistry》2022年第10期60-67,I0003,共9页能源化学（英文版）

基　　金：supported by the Ministry of Science and Technology of China(2016YFA0200703);the National Natural Science Foundation of China(21931009)。

摘　　要：Perovskite solar cells(PSCs)are becoming a promising candidate for next-generation photovoltaic cells due to their attractive power conversion efficiency(PCE).Plasmonic enhancement is regarded as an optical tuning approach for further improving the PCE of single-junction PSCs toward Shockley-Queisser limit.Herein,we introduce molecularly isolated gold nanorods(Au NRs),bearing relatively stronger scattering ability and localized surface plasmonic resonance(LSPR)effect,in the rear side of perovskites in PSCs,for promoting light harvesting and for electrical enhancement.Owing to the larger refractive index and better matched energy level alignment,the 4-mercaptobenzoic acid molecules coated on Au NRs prove to play important dual roles:isolating the metallic Au NRs from contacting with perovskite,and facilitating more efficient charge separation and transport across the interface under the synergetic LSPR effect of Au NRs.Our work highlights the capability of the plasmonic approach by nanorods and by molecular isolation,extending nanoparticle-based plasmonic approaches,toward highly efficient plasmon-enhanced PSCs.

关 键 词：Perovskite solar cells Plasmon-enhanced Gold nanorods Molecular isolation Scattering 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TB383.1[一般工业技术—材料科学与工程]