非铅钙钛矿光伏材料与器件研究进展

Progress of Lead-free Perovskite Photovoltaic Materials and Devices

基于卤化铅的钙钛矿材料因其优良的光电性能和可溶液加工特性,近年来受到光伏及光电领域研究人员的广泛关注。然而,铅(Pb)基钙钛矿材料因其毒性和不稳定性使其无法在商业领域大规模普及应用。开发非铅钙钛矿光吸收材料能够有效降低其环境毒性,是未来新一代光伏技术发展的主要趋势。本文综述了非铅钙钛矿光电材料目前的最新研究进展,系统讨论了其晶体结构、理化性质、光伏特性及其场景应用。我们重点综述了结构相似于卤化铅钙钛矿的三维非铅钙钛矿化合物的研究进展,同时还探讨了二维Ruddlesden⁃Popper相、低维缺陷相非铅钙钛矿化合物和非钙钛矿类化合物的研究进展。本文能够为获得安全、稳定、环境友好的新一代光电材料提供重要借鉴。

Lead halide based perovskites have received a lot of attention from researchers in photo⁃voltaic and optoelectronic fields in recent years due to their excellent photovoltaic properties and so⁃lution processable characteristics.However,the toxicity and instability of lead(Pb)-based perovskite have prevented them from being used in commercial applications on a large scale.The development of lead-free perovskite light-absorbing materials can effectively reduce their environmental toxicity and is a major trend in the future development of next-generation photovoltaic technologies.Here,we review the latest research progress of lead-free perovskite photovoltaic materials and systematically discuss their crystal structures,physicochemical properties,photovoltaic characteristics and their scenario applications.We focus on reviewing the research progress of three-dimensional non-lead chalcogenide compounds with structures similar to lead halide octahedra,and also discuss the research progress of two-dimensional Ruddlesden-Popper phase,low-dimensional defective phase lead-free perovskite compounds and non-perovskite compounds.Hoping this paper can provide an important reference for obtaining safe,stable and environmentally friendly next-generation optoelec⁃tronic materials.