This article presents a study on the growth of perovskite single crystals using vacuum evaporation crystallization. The research team, led by Dong Liu, Xianyuan Jiang, Hao Wang, and others, investigated the crystallization process of perovskite materials, focusing on the effects of temperature, pressure, and solvent evaporation rates on crystal growth. The study provides a detailed analysis of the crystallization process, including the derivation of the Clausius-Clapeyron equation and its application in predicting vapor pressure along the liquid-vapor coexistence curve. The research also includes a series of supplementary figures and tables that provide detailed experimental data, including evaporation rates, crystal sizes, and performance metrics of different perovskite single crystals. The study highlights the importance of controlling the evaporation rate and pressure during the crystallization process to achieve high-quality perovskite single crystals. The research team also examined the structural and optical properties of the perovskite single crystals, including their XRD patterns, elemental compositions, and photoluminescence decay times. The study concludes that vacuum evaporation crystallization is a promising method for the growth of high-quality perovskite single crystals, which have potential applications in optoelectronic devices and solar cells. The research provides valuable insights into the crystallization process of perovskite materials and offers a framework for further studies on the growth and characterization of perovskite single crystals.This article presents a study on the growth of perovskite single crystals using vacuum evaporation crystallization. The research team, led by Dong Liu, Xianyuan Jiang, Hao Wang, and others, investigated the crystallization process of perovskite materials, focusing on the effects of temperature, pressure, and solvent evaporation rates on crystal growth. The study provides a detailed analysis of the crystallization process, including the derivation of the Clausius-Clapeyron equation and its application in predicting vapor pressure along the liquid-vapor coexistence curve. The research also includes a series of supplementary figures and tables that provide detailed experimental data, including evaporation rates, crystal sizes, and performance metrics of different perovskite single crystals. The study highlights the importance of controlling the evaporation rate and pressure during the crystallization process to achieve high-quality perovskite single crystals. The research team also examined the structural and optical properties of the perovskite single crystals, including their XRD patterns, elemental compositions, and photoluminescence decay times. The study concludes that vacuum evaporation crystallization is a promising method for the growth of high-quality perovskite single crystals, which have potential applications in optoelectronic devices and solar cells. The research provides valuable insights into the crystallization process of perovskite materials and offers a framework for further studies on the growth and characterization of perovskite single crystals.