新型钙钛矿单晶生长研究

摘要太阳能电池一直是再生能源热点研究的对象，随着太阳能电池材料的发展，近几年来新型钙钛矿太阳能电池材料也开始受到了人们广泛研究。由有机部分与无机部分组成的新型钙钛矿材料，它既有了有机物的可塑性、较高的荧光发光效率、易加工性和无机物在电子性能上的优势。新型钙钛矿晶体的制备方法一般有溶液冷却方法、溶剂蒸发方法、凝胶法、层状溶液方法等。新型钙钛矿薄膜的研制方法有“湿法工艺”、“干法工艺”和“蒸汽辅助法”等。新型钙钛矿材料在电致发光、太阳能电池材料等应用方面都具有很大的发展前途。71339

本论文采用溶液方法法制备了分别掺杂0%、5%、10%I-的CH3NH3PbBr、CH3NH3PbBr0.95I0.05、CH3NH3PbBr0.9I0。1的新型钙钛矿晶体，并且对其生长条件进行了研究，最终获得了较优的单晶生长方法。并且通过测试X-射线衍射图谱来判断它的结晶情况和计算出了它的晶格常数、晶格类型、晶面指数等参数，同时还发现了随着I浓度的增加，晶体的点阵常数会增大，晶面距离也会增大。

毕业论文关键词：太阳能电池；钙钛矿；晶体生长；

Abstract Solar cells have been the focus of renewable energy research, with the development of solar cell materials, in recent years the new perovskite solar cell materials have begun to be widely studied. A new perovskite material composed of organic and inorganic components has the advantages of organic plasticity, high fluorescence luminous efficiency, ease of workability and inorganic properties in terms of electronic properties. The preparation method of the new perovskite crystal is generally a solution cooling method, a solvent evaporation method, a gel method, a layered solution method and the like. The new method of developing perovskite films is "wet process", "dry process" and "steam assisted method". The new perovskite materials in the electroluminescence, solar cell materials and other applications have great prospects for development.

In this paper, a new perovskite crystal of CH3NH3PbBr, CH3NH3PbBr0.95I0.05, CH3NH3PbBr0.9I0.1 doped with 0%, 5%, 10% I- was prepared by solution method, and its growth conditions were studied , And finally obtained a better single crystal growth method. The lattice constant, lattice type and crystal grain index were calculated by testing the X-ray diffraction pattern. It is also found that with the increase of I concentration, the lattice constant of the crystal will increase, and the crystal surface distance will also increase.

Key Words: solar cell; perovskite; crystal growth;

1绪论 1

1.1 太阳能电池的概况 1

1.1.1 太阳能电池的优点 1

1.1.2 太阳能电池的发展 1

1.1.3 新型钙钛矿太阳能薄膜电池的发展历程 1

1.2 新型杂化钙钛矿的基本特性 3

1.2.1 钙钛矿晶体结构 3

1.2.2 新型钙钛矿单晶的形成规则 4

1.2.3 新型杂化钙钛矿的功能特性 4

1.3 新型杂化钙钛矿单晶和薄膜的制备方法 4

1.3.1 溶液冷却法 5

1.3.2 溶剂蒸发法 5

1.3.3 凝胶法 6

1.3.4 层状溶液法 6

1.3.5 “湿法”工艺新型钙钛矿单晶生长研究:http://www.youerw.com/cailiao/lunwen_80980.html