Perovskite materials,especially metal halide perovskites,exhibit excellent properties,such as large optical coefficients,high carrier mobilities,long carrier lifetimes,tunable resistivities,large X-ray attenuation coe...Perovskite materials,especially metal halide perovskites,exhibit excellent properties,such as large optical coefficients,high carrier mobilities,long carrier lifetimes,tunable resistivities,large X-ray attenuation coefficients,and simple processing techniques.In recent decades,perovskites have attracted significant attention in the photoelectric field due to their versatile utility in solar cells,light-emitting diodes,photodetectors,X/γ-ray detectors,and lasing.However,the wide applicability of perovskites highly depends on the quality of perovskite crystals and films.Thus far,several perovskite growth technologies and methods have emerged.Therefore,this review classified and summarized the main methods that have been employed to achieve perovskite growth in recent years,including the solution temperaturelowering(STL)method,inverse temperature crystallization(ITC),anti-solvent vapor-assisted crystallization(AVC),spin coating,and chemical vapor deposition(CVD).Through analysis and summary,it has been determined that the STL,ITC,and AVC methods are mainly used to grow high-quality perovskite single crystals.While the spin-coating method has a significant advantage in the preparation of perovskite films,the CVD method is propitious in the fabrication of a variety of morphologies of micro/nano perovskite materials.We hope that this review can be a comprehensive reference for scientific researchers to prepare perovskite-related materials.展开更多
Two-dimensional(2D)perovskites are hybrid layered materials in which the inorganic lattice of an octahedron is sandwiched by organic layers.They behave as a quantum-well structure exhibiting large exciton binding ener...Two-dimensional(2D)perovskites are hybrid layered materials in which the inorganic lattice of an octahedron is sandwiched by organic layers.They behave as a quantum-well structure exhibiting large exciton binding energy and high emission efficiency,which is excellent for photonic applications.Hence,the cavity modulation and cavity devices of 2D perovskites are widely investigated.In this review,we summarize the rich photophysics,synthetic methods of different cavity structures,and the cavity-based applications of 2D perovskites.We highlight the strong exciton–photon coupling and photonic lasing obtained in different cavity structures.In addition,functional optoelectronic devices using cavity structures of 2D perovskites are also reviewed.展开更多
基金supported by the Ministry of Science and Technology(2016YFA0200700 and 2017YFA0205004)the National Natural Science Foundation of China(21673054,11874130,61307120,61704038 and 11474187)the Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics(KF201902)。
文摘Perovskite materials,especially metal halide perovskites,exhibit excellent properties,such as large optical coefficients,high carrier mobilities,long carrier lifetimes,tunable resistivities,large X-ray attenuation coefficients,and simple processing techniques.In recent decades,perovskites have attracted significant attention in the photoelectric field due to their versatile utility in solar cells,light-emitting diodes,photodetectors,X/γ-ray detectors,and lasing.However,the wide applicability of perovskites highly depends on the quality of perovskite crystals and films.Thus far,several perovskite growth technologies and methods have emerged.Therefore,this review classified and summarized the main methods that have been employed to achieve perovskite growth in recent years,including the solution temperaturelowering(STL)method,inverse temperature crystallization(ITC),anti-solvent vapor-assisted crystallization(AVC),spin coating,and chemical vapor deposition(CVD).Through analysis and summary,it has been determined that the STL,ITC,and AVC methods are mainly used to grow high-quality perovskite single crystals.While the spin-coating method has a significant advantage in the preparation of perovskite films,the CVD method is propitious in the fabrication of a variety of morphologies of micro/nano perovskite materials.We hope that this review can be a comprehensive reference for scientific researchers to prepare perovskite-related materials.
基金Strategic Priority Research Program of the Chinese Academy of Sciences(XDB36000000)Ministry of Science and Technology(2016YFA0200700,2017YFA0205004)+1 种基金National Natural Science Foundation of China(21673054,11874130)Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics(KF201902).
文摘Two-dimensional(2D)perovskites are hybrid layered materials in which the inorganic lattice of an octahedron is sandwiched by organic layers.They behave as a quantum-well structure exhibiting large exciton binding energy and high emission efficiency,which is excellent for photonic applications.Hence,the cavity modulation and cavity devices of 2D perovskites are widely investigated.In this review,we summarize the rich photophysics,synthetic methods of different cavity structures,and the cavity-based applications of 2D perovskites.We highlight the strong exciton–photon coupling and photonic lasing obtained in different cavity structures.In addition,functional optoelectronic devices using cavity structures of 2D perovskites are also reviewed.
