摘要
The last decade has witnessed great progress in photovoltaic technology based on organometal halide perovskites because of their low nonradiative recombination loss,long carrier lifetime,and long diffusion length.The excellent optical properties and easy preparation of organometal halide perovskite-based photovoltaic products enable their wide applications in electro-optical and opto-electrical conversions.In this review,photoinduced free carriers,exciton recombination,and diffusion properties of perovskite photoelectronic devices are discussed.By controlling grain sizes and grain boundaries,suppressing defects,and conducting interfacial charge transfer,their dynamics can be controlled in a versatile manner.The generality and differences in"effective carriers"for device applications,including their electro-optical and opto-electrical conversions,are discussed.In all-optical devices,a strong light-matter interaction causes nonlinear effects,such as two-photon absorption,self-phase modulation,and optical blenching,which enable high-resolution imaging,optical modulation,and optical switching.This review provides a basis for constructing high-performance photoelectronic devices.
过去十年以来,具有非辐射复合损失低、载流子寿命和扩散长度长等优异特征的有机金属卤化物钙钛矿在光伏技术领域取得了长足进展.有机金属卤化物钙钛矿具有卓越的光学性能和易于制备的特征,其在电光和光电转换中得到广泛应用.本文讨论了光激发自由载流子、激子的复合和扩散动力学特性.这些动力学特性可以通过控制晶粒尺寸和晶界、抑制缺陷和界面电荷转移等多种方式进行控制.并且讨论了在电光和光电转换器件中"有效载流子"的共性和差异.在全光器件中,强的光与物质相互作用会导致非线性效应,如双光子吸收、自相位调制和光学漂白,从而实现高分辨率成像、光调制和波长转换.本综述为构建高性能光电器件提供了理论基础.
作者
Feng Zhang
Zhou Mi
Weizhong Hao
Hualong Chen
Yule Zhang
Jinjin Zhao
Guozhong Cao
Han Zhang
张峰;秘周;郝伟仲;陈华龙;张俣乐;赵晋津;曹国忠;张晗(Collaborative Innovation Center for Optoelectronic Science and Technology International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale Optoelectronics,Shenzhen University,Shenzhen,518060,China;School of Materials Science and Engineering,Shijiazhuang Tiedao University,Shijiazhuang,050043,China;Department of Materials Science and Engineering,University of Washington,Seattle,WA,98195-2120,USA)
基金
supported by the National Natural Science Foundation of China(51702219,61975134,61875138,11772207,61961136001)
the Science and Technology Innovation Commission of Shenzhen(KQJSCX20180328095501798,JCYJ20180507182047316,JCYJ20170811093453105,JCYJ20180307164612205,GJHZ20180928160209731)
the Natural Science Foundation of Hebei Province for distinguished young scholars(A2019210204)
Guangdong Basic and Applied Basic Research Foundation(2020A1515110538)
China Postdoctoral Science Foundation(2021M692179)。
作者简介
张峰,currently a postdoctoral researcher at the Collaborative Innovation Center for Optoelectronics and Technology,Shenzhen University.He received his bachelor's and master's degrees from Shandong Normal University in 2013 and 2017.Then,he achieved his PhD degree from Shenzhen University in 2020.His research'I interests focus on the nonlinear and ultrafast spectroscopies of low-dimensional materials and related devices.contributed equally to this work;秘周,graduated from Hebei University of Science and Technology in 2019 with a bachelor's degree in inorganic non-metallic materials engineering.Since 2019,he has been studying for a master's degree at Shijiazhuang Tiedao University.His research direction is the preparation and performance of perovskite solar devices.contributed equally to this work;Corresponding authors:赵晋津,,the director of the Insititute of Materials for Energy Conversion,Shijiazhuang Tiedao University.She obtained her PhD degree in materials physics and chemistry from Shanghai Institute of Ceramics,Chinese Academy of Sciences(SICCAS)in 2010,under the supervision of Prof.Jianlin Shi and Prof.Hangrong Chen.She did her visiting doctoral studies at Max Plank Institute of Colloids and Interfaces,Germany,from October 2007 to October 2008,worked as a visiting scholar at the University of Washington from August 2015 to August 2016,and recently visited the City University of Hong Kong from July 2019 to October 2019.She held faculty appointment at Shijiazhuang Tiedao University.She is interested in probing instability mechanism in perovskite devices.emails:jinjinzhao2012@163.com;Corresponding authors:曹国忠,Boeing-Steiner Professor of materials science and engineering and chemical engineering,and adjunct professor of mechanical engineering at the University of Washington(Seattle).His current research focuses on chemical processing of nanomaterials for energy-related applications including solar cells,rechargeable batteries,supercapacitors,and hydrogen storage.The research emphasis is to achieve novel structure and properties of energy-related nanostructured materials through processing and composition designing.emails:gzcao@u.washington.edu;Corresponding authors:张晗,currently the director of Shenzhen Key Laboratory of 2D Materials and Devices,and Shenzhen Engineering Laboratory of Phosphorene and Optoelec-tronics,Shenzhen University.He received his BSc degree from Wuhan University in 2006 and PhD degree from Nanyang Technological University in 2010.His current research focuses on ultrafast-,nonlinear-,and biopho-tonics of low-dimensional materials and devices,emails:hzhang@szu.edu.cn。
