Hybrid perovskite moisture stability: challenges and solutions
Pablo Docampo a
a University of Glasgow, Glasgow Centre for Physical Organic Chemistry, WestCHEM, Department of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK, United Kingdom
International Conference on Hybrid and Organic Photovoltaics
Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
Online, Spain, 2021 May 24th - 28th
Organizers: Marina Freitag, Feng Gao and Sam Stranks
Invited Speaker, Pablo Docampo, presentation 100
Publication date: 11th May 2021

Hybrid halide perovskites combine top-notch optoelectronic properties with solution-deposition. This unprecedented combination has led to the development of solar cells approaching power conversion efficiencies achieved by industry staples such as poly-Si. The road towards these achievements has been marked by a constant improvement of perovskite deposition techniques fuelled by our increasing understanding of the crystallization processes, yet stability is still a challenge. Perovskites are particularly susceptible to moisture, which catalyses degradation. In this talk I will show how the mechanism works, how a popular strategy of incorporating layered perovskites as a 'hydrophobic' layer, in fact does not keep water out; and alternative approaches to minimise the issue.

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