发光学报2026，Vol.47Issue(3)：453-462,10.DOI:10.37188/CJL.20250270
大斯托克斯位移的Mn2+掺杂(PEA)2PbBr4钙钛矿用于高效发光太阳能聚光器
Mn2+Doped(PEA)2 PbBr4 Perovskite with Large Stokes Shift for High-efficiency Luminescent Solar Concentrators
摘要
Abstract
Luminescent solar concentrators(LSCs)have attracted significant attention due to their potential in large-area building-integrated photovoltaics.To realize efficient LSC,it is necessary to overcome the reabsorption losses while maintaining a high photoluminescence quantum yield(PLQY)and broad-spectrum absorption.Organic-inorganic two-dimensional hybrid perovskite materials,such as(PEA)2PbBr4(PEA+=C8H12N+),have shown promis-ing prospects in low-cost optoelectronic devices.It is crucial for LSC to independently regulate the absorption and emission properties by using the doping strategies.However,the inherent small Stokes shift of intrinsic two-dimen-sional perovskites leads to severe reabsorption losses,which limit the efficiency of LSC.In this work,Mn2+doped two-dimensional Mn∶(PEA)2PbBr4 was successfully prepared via a high-temperature solid-state method.Its optical properties were investigated,and device performance for application in LSCs was evaluated.The results demonstrat-ed that Mn2+doping induces a large Stokes shift of up to 310 nm with the absorption peak at～300 nm and the emis-sion peak at～610 nm.The perovskite materials were embedded into a polydimethylsiloxane(PDMS)polymer matrix at varying mass fractions(0.15%-0.75%)to fabricate Mn∶(PEA)2PbBr4@PDMS thin films.Photovoltaic perfor-mance tests revealed that the 0.60%Mn∶(PEA)2PbBr4@PDMS film delivered the optimal performance,achieving an external optical efficiency(ηopt)of 7.57%and a maximum power conversion efficiency(PCE)of 1.246%under standard AM1.5G illumination.关键词
Mn:(PEA)2PbBr4/太阳能聚光器/光伏/太阳能/二维钙钛矿Key words
Mn:(PEA)2PbBr4/luminescent solar concentrators/photovoltaics/solar energy/two-dimensional perovskites分类
数理科学引用本文复制引用
龚梦梦,宋凯,任卫杰,师慧,张瑞,金鹏宇,谢自杰,和育栋,蒋昭毅,秦振兴,张宇飞..大斯托克斯位移的Mn2+掺杂(PEA)2PbBr4钙钛矿用于高效发光太阳能聚光器[J].发光学报,2026,47(3):453-462,10.基金项目
山西省自然科学基金面上项目(202403021221133)Supported by Fundamental Research Program of Shanxi Province(202403021221133) （202403021221133）
