新型太阳能电池材料CH3NH3PbX3（X=Cl，Br，I）的晶体生长和性能研究

项目名称： 新型太阳能电池材料CH3NH3PbX3（X=Cl，Br，I）的晶体生长和性能研究

项目编号： No.51472123

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 苏静

作者单位： 南京信息工程大学

项目金额： 83万元

中文摘要： 有机－无机杂合卤化物钙钛矿结构材料因成本低，光电转化率高及溶液低温工艺等优势将成为新一代高效全固态太阳能电池的基础材料。为优化卤化物CH3NH3PbX3钙钛矿基太阳能电池的性能、促进其商业化应用，本项目采用溶液法生长CH3NH3PbX3 (X=Cl,Br,I 或混合卤素) 单晶，通过晶体生长动力学研究，明确结晶习性，探索生长机理。系统地研究其物化性能，电学、光学性能及光电转化性能等，揭示机理问题。通过优化晶体生长工艺，获得优质大尺寸CH3NH3PbX3(X=Cl,Br,I)单晶和一定尺寸的混合卤化物单晶。基于晶体生长，结构与性能的研究，将为新型钙钛矿太阳能电池的研制提供理论指导。这项工作弥补了国内外有机－无机杂合卤化物钙钛矿结构单晶生长技术及性能研究的不足，有助于促进基础研究和应用研究的一体化和源头创新；对推动新型高效全固态太阳能电池的产业化，提升我国在光伏领域的研发竞争力具有重要意义。

中文关键词： CH3NH3PbX3；晶体生长；性能表征；太阳能电池；钙钛矿结构

英文摘要： Organic-inorganic hybrid perovskite-structured materials exhibit advantages such as low cost, high photoelectric conversion efficiency, and low temperature solution synthesis feasibility, making them the basis materials for developing the new generation high-efficient solid-state solar cells. In order to optimize the performance of halide perovskites CH3NH3PbX3 based solar cells and to promote their commercial applications, we propose in this project to grow CH3NH3PbX3(X = Cl, Br, I or a combination) crystals by the solution method, study the crystal growth kinetics, determine the crystalline habits and explore the growth mechanism. The studies on physical and chemical properties, electrical properties, optical and photoelectronic performances will be systematically carried out, and the mechanism problems will also be revealed. By optimizing crystal growth parameters, high-quality and large-size CH3NH3PbX3 (X= Cl, Br, I) single crystals and certain-size mixed-halide perovskite single crystals are expected to be obtained. The study results based on the crystal growth, their structural and property characterization, will be used for guiding the fabrication of the novel perovskite-based solar cells. In summary, this project aims at the development of novel organic-inorganic hybrid perovskite-structured materials, for promoting the integration of basic science and applied research, and making the initial innovation in this field. In addition, it will also accelerate the industrialization applications of the novel high efficiency solid-state solar cells, and enhance the competitive ability of our country in solar cell industry.

英文关键词： CH3NH3PbX3;crystal growth;performance characterization;solar cell;perovskite structure