基于锡铅混合钙钛矿的超快自驱动近红外光电探测器与成像阵列
Ultrafast Self-powered Near-infrared Photodetectors and Imaging Array Based on Tin-lead Mixed Perovskites
摘要
Abstract
Tin-lead(Sn-Pb)mixed perovskites are extensively investigated in near-infrared(NIR)photodetectors(PDs)owing to their excellent photoelectric performance.However,achieving high-performance Sn-Pb mixed PDs remains challenging,primarily because of the rapid crystallization and the susceptibility of Sn2+to oxidation.To ad-dress these issues,this study introduces the multifunctional molecules 2,3-difluorobenzenamine(DBM)to modulate the crystallization of Sn-Pb mixed perovskites and retard the oxidation of Sn2+,thereby significantly enhancing film quality.Compared with the pristine film,Sn-Pb mixed perovskite films modulated by DBM molecules exhibit a high-ly homogeneous morphology,reduced roughness and defect density.The self-powered NIR PDs fabricated with the improved films have a spectral response range from 300 nm to 1 100 nm,a peak responsivity of 0.51 A·W-1,a spe-cific detectivity as high as 2.46×1011 Jones within the NIR region(780 nm to 1 100 nm),a linear dynamic range ex-ceeding 152 dB,and ultrafast rise/fall time of 123/464 ns.Thanks to the outstanding performance of PDs,the fabri-cated 5×5 PDs array demonstrates superior imaging ability in the NIR region up to 980 nm.This work advances the development of Sn-Pb mixed perovskites for NIR detection and paves the way for their commercialization.关键词
锡铅混合钙钛矿/近红外光电探测器/成像阵列/氧化/结晶调控Key words
tin-lead mixed perovskites/near-infrared photodetectors/imaging array/oxidation/crystallization modulation分类
数理科学引用本文复制引用
刘晶晶,贾锁堂,杨志春,包昊天,孟新钦,齐敏如,杨昌钢,张国峰,秦成兵,肖连团..基于锡铅混合钙钛矿的超快自驱动近红外光电探测器与成像阵列[J].发光学报,2025,46(6):1037-1047,11.基金项目
国家重点研发计划(2022YFA1404201) （2022YFA1404201）
国家自然科学基金(62205187,U23A20380,U22A2091,62222509,62127817,62075120) （62205187,U23A20380,U22A2091,62222509,62127817,62075120）
教育部长江学者和创新团队发展计划(IRT_17R70) （IRT_17R70）
山西省基础研究计划(202103021223032,202303021222031) （202103021223032,202303021222031）
中国博士后科学基金(2022M722006) （2022M722006）
山西省"1331工程"重点学科建设计划 Supported by National Key Research and Development Program of China(2022YFA1404201) （2022YFA1404201）
National Natural Science Foun-dation of China(62205187,U23A20380,U22A2091,62222509,62127817,62075120) （62205187,U23A20380,U22A2091,62222509,62127817,62075120）
Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(IRT_17R70) （IRT_17R70）
Fundamental Research Program of Shanxi Prov-ince(202103021223032,202303021222031) （202103021223032,202303021222031）
Project Funded by China Postdoctoral Science Foundation(2022M722006) （2022M722006）
Fund for Shanxi"1331 Project"Key Subjects Construction （）
