可溶液加工的有机-无机杂化钙钛矿:超越光伏应用的“梦幻”材料  

Solution-Processed Organic-Inorganic Hybrid Perovskites:A Class of Dream Materials Beyond Photovoltaic Applications

作　　者：王娜娜[1] 司俊杰[2] 金一政[3] 王建浦[1] 黄维[1] 

机构地区：[1]柔性电子重点实验室先进生物与化学制造协同创新中心南京工业大学先进材料研究院,南京211816 [2]高新材料化学中心硅材料国家重点实验室浙江大学材料科学与工程学院,杭州310027 [3]高新材料化学中心硅材料国家重点实验室浙江大学化学系,杭州310027

出　　处：《化学学报》2015年第3期171-178,共8页Acta Chimica Sinica

基　　金：江苏省自然科学基金(Nos.BK20131413,BK20140952);国家科技支撑计划(No.2011AA050520);国家重大研究计划(No.2015CB932200);江苏特聘教授计划;江苏高校优势学科建设工程二期项目;浙江大学硅材料国家重点实验室研究基金;国家自然科学基金(Nos.51172203,61405091,11474164);省部级课题(Nos.R4110189,2013C31057)资助~~

摘　　要：有机-无机杂化钙钛矿材料是可通过溶液工艺低温制备得到的直接带隙半导体晶体薄膜.在众多可溶液加工的半导体材料中,有机-无机杂化钙钛矿薄膜是为数不多的低缺陷密度、双极子传输性能优异的晶体薄膜,同时兼具宽光谱吸收和长载流子扩散距离等特性,是平面异质结太阳能电池的理想选择.另外,作为低缺陷密度的直接带隙半导体晶体材料,杂化钙钛矿薄膜具有优异的发光特性.其发光波长可通过能带工程(在分子水平上改变其组分)进行调节,因此有望在发光二极管和激光等光电器件中得到新应用.总结了钙钛矿材料的优异特性和目前应用研究的进展,并对其未来发展做了展望.Organic-inorganic hybrid perovskite is a class of direct-bandgap semiconductors that can be processed as thin films from solutions by low-temperature methods. Among various solution-processable semiconductor materials, the hybrid perovskites exhibit unique combination of low bulk-trap densities, remarkable ambipolar transport properties, good broadband absorption characteristics and long charge carrier diffusion lengths, making them ideal for photovoltaic applications. Furthermore, as direct bandgap semiconductors with low bulk trap densities, the hybrid perovskite films possess remarkable luminescent properties. The bandgap of the hybrid perovskites can be tuned by crystal engineering, i.e. tuning the composition at molecular levels. These intriguing properties indicate that the hybrid perovskites may also find applications in light-emitting diodes and lasing. This paper reviews the unique properties and current research progresses of this class of dream material and provides our perspective of future directions.

关 键 词：杂化 钙钛矿 溶液加工 发光二极管 激光 

分 类 号：TN304[电子电信—物理电子学]