Rapid Growth of Halide Perovskite Single Crystals: From Methods to Optimization Control

Abstract

Metal halide perovskites are emerging as new generation optoelectronic materials due to their high carrier mobility, long carrier diffusion length and large light absorption coefficient, which have broad applications in solar cell, light-emitting diode, laser, photodetector and transistors. Perovskite single crystal is an ideal platform for discerning the intrinsic properties of these materials. In some cases, perovskite single crystals are better candidates to gain high performance optoelectronics. However, the growth of perovskite single crystals is time and cost consuming, which has an obvious disadvantage for device exploration. Therefore, fast growth technique is highly desirable in not only promoting the use of perovskites in commercial applications but also facilitating deep physical investigation of the materials. In this review, we summarize thoroughly the development of fast growth of the halide perovskites single crystal. Specifically, we highlight the progress of rapid growth techniques with emphasis on the optimization control.

Strongly Emissive Lead‐Free 0D Cs3Cu2I5 Perovskites Synthesized by a Room Temperature Solvent Evaporation Crystallization for Down‐Conversion Light‐Emitting Devices and Fluorescent Inks

“…Solvent evaporation crystallization method based on precipitation of the precursor(s) from solution upon evaporation of solvent, is a common strategy used to fabricate crystalline materials 49,50. Despite the widespread use of this protocol to synthesize lead halide perovskites including both organic–inorganic (i.e., CH 3 NH 3 PbX 3 )51 and all‐inorganic (i.e., CsPbX 3 ) (X = Cl, Br, I)52,53 compounds, to the best of our knowledge, copper based lead‐free perovskites have not yet been fabricated by this technique. Herein, all‐inorganic 0D Cs 3 Cu 2 I 5 crystals were prepared at room temperature by the solvent evaporation crystallization process, using CsI and CuI as precursor materials and DMF as a solvent, as shown in Figure a.…”

Halide Perovskite, a Potential Scintillator for X‐Ray Detection

“…In recent years, with the increasing demand for radiation detection materials in many aspects, researchers have conducted extensive researches on scintillators. Perovskite materials have been proved to be a potential scintillator material due to their excellent properties, [ 163,164 ] but their applications are scarce. Therefore, in this chapter, we mainly summarize the current research challenges and the feasibility analysis for scintillators, and provide a simple outlook for the future development.…”

Heterojunction‐Type Photocatalytic System Based on Inorganic Halide Perovskite CsPbBr3†

“…[ 1 ] Due to their unique optoelectronic properties such as long charge carrier lifetime, [ 2 ] high absorption coefficient, [ 3 ] high charge carrier mobility, [ 4‐5 ] and flexible band structure engineering, [ 6‐7 ] along with their low processing cost, [ 8 ] the halide perovskite materials are promising candidates for highly efficient and cost‐competitive solar conversion devices. [ 9 ] More recently, it has been reported that the halide perovskite materials show unique activities in the photocatalytic conversion of multiple chemicals. [ 10 ]…”