Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
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.