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摘要随着人类对能源需求的不断增加，光伏产业发展迅速，以钙钛矿太阳能电池为代表的第三代太阳能电池在问世不久就取得了另世人瞩目的成就，其效率在短短几年内就超过了20%，因此成为新的研究热点。但是钙钛矿电池目前也存在一些问题，例如稳定性较差，材料中含有Pb等重金属，因此开发新材料，提高电池稳定性是亟需解决的问题。
- 上一篇：铁酸铋薄膜光电性质及其铁电畴演变的研究
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本实验采用碘化铯、碘化铋等几种无机盐与苯胺、甘氨酸等几种有机胺进行反应，探索制作钙钛矿电池的新材料。实验中，主要对吸收光谱较好，薄膜颜色较深的有机胺与碘化铋的几组反应进行了进一步的探索，对比了溶液在加热前与加热后的光谱吸收，并将几种光谱吸收比较好的反应产物做成了电池，对其效率进行了测量。26058
关键词 钙钛矿 溶剂热法 吸收光谱 太阳能电池
毕业论文设计说明书外文摘要
Title Hydrothermal synthesis and photoelectric properties of perovskite nanocrystals
Abstract
With human increasing demand for energy, photovoltaic industry has developed rapidly. As represent of the third generation of solar cells perovskite solar cells has made another noteworthy achievements after it come out soon, its efficiency have beyond 20% in a few years, thus it becomes a new hotspot. But there are some problems in perovskite solar cells currently, such as poor stability, containing Pb and other heavy metals. Therefore, the development of new materials to improve its stability is needed to solve problems.
In this study, we use cesium iodide, bismuth iodide and other inorganic salts react with aniline, glycine and other organic amine to explore the production of new material perovskite solar cells. In the experiment, only of organic amine react with bismuth iodide were further explored which have better absorption spectrum and the darker film. We compared the absorption spectrum of the several groups of solution before and after heated, then, we made they into films. In the last, we measured Its efficiency and compared with the battery prepared with perovskite materials CH3NH3PbI3.
Keywords perovskite solar cells absorption spectrum
目 次
1 绪论 1
1.1 钙钛矿简介 1
1.2 钙钛矿纳米晶薄膜的制备方法 1
1.3 钙钛矿太阳能电池的发展 3
1.4 钙钛矿电池的研究现状 4
1.5 选题目的及意义 4
2 实验过程 5
2.1 实验材料 5
2.2 实验仪器 5
2.3 实验步骤 7
2.4 表征 9
3 实验结果与分析 9
3.1 钙钛矿纳米晶的光谱吸收分析 9
3.2 钙钛矿薄膜的光谱吸收分析 13
3.3 钙钛矿薄膜形貌分析 16
3.4 钙钛矿电池的效率分析 17
结 论 19
致 谢 20
参考文献21
1 绪论
1.1 钙钛矿简介
钙钛矿（perovskite）通常指的是一种由钛酸钙等组成的钙钛氧化物矿石，它的化学式为CaTiO3。1839年，地质学家古斯塔夫•罗斯（Gustav Rose）在俄罗斯的乌拉尔山发现了这种矿石，并以俄罗斯矿物学家Lev Perovski的名字来为这类矿石命名,后来，和CaTiO3具有相同晶体结构类型的材料都被称为钙钛矿材料[1]。钙钛矿族的化合物广泛地存在于自然界中，其中硅酸镁钙钛矿（MgSiO3）是地幔中储量最丰富的矿物。