2024
DOI: 10.1021/acsaem.4c02147
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Conformational Disordering of Organic Cations during Moisture-Induced Structural Collapse in Organic–Inorganic Hybrid Perovskites

Jing Lai,
Junjun Tan,
Renlong Zhu
et al.

Abstract: Moisture-induced structural collapse is an important factor hindering the commercialization of organic−inorganic hybrid perovskites, where organic cations play a crucial role. However, owing to the softness and complexity of organic cations, very few techniques can be used to characterize the collapse process in situ and in real time. In this study, we used a phenylpropylamine (PPA)-based 2D perovskite as a model and demonstrated that femtosecond sum frequency generation vibrational spectroscopy (SFG-VS) provi… Show more

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