摘要太阳能电池作为新能源中的佼佼者，在近年的研究中越发得到重视，而其中钙钛矿 太阳能电池因其结构简单、制备方便、潜力巨大,更是成为了研究的重点。以 CH3NH3PbI3 为代表的有机-无机杂化钙钛矿电池能量转化效率较高；而以 CsPbI3 为代表的全无机钙钛 矿电池对于制备条件要求低、在空气中稳定性好。在这项工作中，通过在这两类钙钛矿 材料中分别掺杂不同浓度的 Br、Cl 卤族元素，以两步法制备出了太阳能电池。同时，经 过 XRD、SEM、UV-Vis 吸收和 J-V 曲线等测量手段的表征，证明了卤素的掺杂可以达到 对带隙连续调整的目的，并且提高了电池的效率与稳定性。在标准光照和大气质量的情 况下，最好的电池器件的效率为 8。38%，开路电压达到了 0。87V，短路电流达到了 17。43mA。73784

毕业论文关键词 太阳能电池 有机-无机杂化钙钛矿 掺杂卤素 带隙调整

毕 业 设 计 说 明 书 外 文 摘 要

Title Preparation  and  Photoelectric Properties of Organometal  Halide Perovskite Solar Cells

Abstract As a newly developed leader in new energy, in recent years increasingly studies concerned with solar energy are valued。 Considering its concise structure, simple preparation as well as great potential to industrialize, the perovskite solar cells are becoming the focus of the study。 Represented by CsPbI3, inorganic perovskite cells share the advantages of low demand of preparation condition and high stability, where hybrid inorganic-organic cells, like CH3NH3PbI3, demonstrate relatively high energy conversion efficiency。 Consequently, by  doping with different proportions of Br, Cl halogen element, these two perovskite  solar  cells are characterized through XRD, SEM, UV-Vis  absorption measurements, so as to achieve the  goal of continuous adjustment of the band gap, covering the entire range of visible waves, and improving the efficiency and stability of the battery。 In the environment of standard light illumination and air mass, the efficiency of the best-performed device has reached 8。38%, with an open circuit voltage of 0。87V and a short-circuit current of 17。43mA。

Keywords Solar cells Hybrid inorganic- organic perovskite Doped with halide Tunable band gap

目 次

1 引言 1

1。1 钙钛矿效应及其基本性质 1

1。2 钙钛矿敏化的太阳能电池的发展历史 2

1。3 影响钙钛矿太阳能电池性能的主要因素 5

1。4 钙钛矿电池与其他电池的比较 6

1。5 钙钛矿太阳能电池的研究前沿 7

1。6 太阳能电池特征参数及其性质表征 8

1。7 选题目的与研究内容 10

2 实验 11

2。1 实验原料 11

2。2