Interactions Between 2D Halide Perovskite Materials and Methylamine Vapor

被引：0
作者：
Cutlip, Elizabeth, V [1 ]
Christians, Jeffrey A. [1 ]
机构：
[1] Hope Coll, Dept Engn, Holland, MI 49423 USA
来源：
2020 47TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2020年
关键词：
halide perovskite; photovoltaics; methylamine; crystal structure; Ruddlesden-Popper;
D O I：
10.1109/pvsc45281.2020.9300844
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The structural tunability of halide perovskites offers exciting potential for their use as photovoltaic materials and as semiconductors in diverse applications. We investigate 2-dimensional Ruddlesden-Popper phase halide perovskite structural stability by the intercalation-deintercalation of methylamine gas. By manipulating the organic spacer, we investigate the relative binding strength in comparison to methylamine. We find that in some 2D perovskite systems, deintercalation of the methylamine gas is incomplete and appears to result in the formation of some CH3NH3PbI3; however, materials featuring other organic spacers show the initial formation of A(2)(CH3NH3)(n-1)PbnI3n+1 materials with n = 2 with subsequent reversible intercalation-deintercalation of methylamine, indicating stronger binding with the lead halide octahedral sheets.
引用
收藏
页码：1972 / 1975
页数：4
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