Improving the UV-light stability of silicon heterojunction solar cells through plasmon-enhanced luminescence downshifting of YVO_(4):Eu^(3+),Bi^(3+)nanophosphors decorated with Ag nanoparticles  

作　　者：Cheng-Kun Wu Shuai Zou Chen-Wei Peng Si-Wei Gu Meng-Fei Ni Yu-Lian Zeng Hua Sun Xiao-Hong Zhang Xiao-Dong Su 

机构地区：[1]School of Physical Science and Technology,and Jiangsu Key Laboratory of Thin Films,Soochow University,Suzhou 215006,Jiangsu,China [2]Institute of Functional Nano&Soft Materials(FUNSOM),Soochow University,Suzhou 215123,Jiangsu,China

出　　处：《Journal of Energy Chemistry》2023年第6期212-220,I0007,共10页能源化学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.52202276 and 51821002);the China Postdoctoral Science Foundation (Grant No.2022M712300);the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No.22KJB480010);a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)。

摘　　要：The ultraviolet(UV)light stability of silicon heterojunction(SHJ)solar cells should be addressed before large-scale production and applications.Introducing downshifting(DS)nanophosphors on top of solar cells that can convert UV light to visible light may reduce UV-induced degradation(UVID)without sacrificing the power conversion efficiency(PCE).Herein,a novel composite DS nanomaterial composed of YVO_(4):Eu^(3+),Bi^(3+)nanoparticles(NPs)and AgNPs was synthesized and introduced onto the incident light side of industrial SHJ solar cells to achieve UV shielding.The YVO_(4):Eu^(3+),Bi^(3+)NPs and Ag NPs were synthesized via a sol-gel method and a wet chemical reduction method,respectively.Then,a composite structure of the YVO_(4):Eu^(3+),Bi^(3+)NPs decorated with Ag NPs was synthesized by an ultrasonic method.The emission intensities of the YVO_(4):Eu^(3+),Bi^(3+)nanophosphors were significantly enhanced upon decoration with an appropriate amount of~20 nm Ag NPs due to the localized surface plasmon resonance(LSPR)effect.Upon the introduction of LSPR-enhanced downshifting,the SHJ solar cells exhibited an~0.54%relative decrease in PCE degradation under UV irradiation with a cumulative dose of 45 k W h compared to their counterparts,suggesting excellent potential for application in UV-light stability enhancement of solar cells or modules.

关 键 词：Downshifting Silver nanoparticles Localized surface plasmon resonance UV-light stability Silicon heterojunction solar cells 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TQ422[化学工程] TB383.1[一般工业技术—材料科学与工程]