通过有机离子位移保存三化薄膜的特殊形态演变
Yuanyuan Zhou1, Mengjin Yang2, Shuping Pang3
1School of Engineering, Brown University , Providence, Rhode Island 02912, United States.
Journal of the American Chemical Society
|April 19, 2016
概括
一种新方法将甲基化 (MAPbI3) 化薄膜转化为甲化 (FAPbI3) 薄膜,使用甲化气体. 这种快速的化学转化保护了薄膜结构,并使高效的矿太阳能电池成为可能.
科学领域:
- 材料科学
- 固态化学
- 可再生能源
背景情况:
- 甲基化 (MAPbI3) 是太阳能电池的关键矿材料.
- 开发高效稳定的矿太阳能电池需要优化材料处理.
- 替代的矿化合物,如甲胺 (FAPbI3) 提供了潜在的优势.
研究的目的:
- 开发一种新且高效的化学途径来合成胺 (FAPbI3) 矿薄膜.
- 研究MAPbI3的现有加工技术与FAPbI3合成的适应性.
- 通过新方法制造的FAPbI3矿太阳能电池的性能.
主要方法:
- 预合成的甲基酸 (MAPbI3) 薄膜的化学转化.
- 在150°C时将MAPbI3薄膜暴露在形式胺 (FA) 气体中.
- 由此产生的FAPbI3膜的表征和矿太阳能电池的制造.
主要成果:
- 为FAPbI3矿薄膜建立了一个简单而快速的气相转换方法.
- 转化过程有效地将甲基 (MA+) 离子替换为形式胺 (FA+) 离子.
- 原始MAPbI3膜的微结构形态在FAPbI3膜中保存得很好.
- 使用这种方法制造的矿太阳能电池实现了大约18%的功率转换效率.
结论:
- 经过证明的化学转化途径为高质量的FAPbI3矿薄膜提供了方便的途径.
- 这种方法允许直接适应已建立的MAPbI3处理创新,用于FAPbI3.
- 这种方法有望提高矿太阳能电池技术的效率和可扩展性.
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