Understanding degradation pathways in halide perovskite solar cells through operando x-ray scattering

Laura Schelhas

doi:10.1117/12.2595080

2 August 2021 Understanding degradation pathways in halide perovskite solar cells through operando x-ray scattering

Laura Schelhas

Proceedings Volume 11809, Organic, Hybrid, and Perovskite Photovoltaics XXII; 118090K (2021) https://doi.org/10.1117/12.2595080
Event: SPIE Organic Photonics + Electronics, 2021, San Diego, California, United States

Abstract

In this talk, we present our methodology for both in-situ and operando X-ray characterization of full PSC device stacks. These methods were developed, in collaboration with researchers at SLAC and NREL, initially to study the device properties of MAPbI3 as a function of temperature. Since then, these methods have been applied to understand the phase stability of mixed A-site PSCs of the form XPbI3 where X = FA, Cs, and/or MA. More recently we have explored tin−lead PSCs devices, to better understand diminished device performance upon thermal treatment. This work showed a stable bulk structure of the perovskite absorber, suggesting that the degradation mechanism is dominated by the surface chemistry. This talk will provide a summary of the operando methods developed as well as a report on these past and more recent results.

Conference Presentation

Citation Download Citation

Laura Schelhas "Understanding degradation pathways in halide perovskite solar cells through operando x-ray scattering", Proc. SPIE 11809, Organic, Hybrid, and Perovskite Photovoltaics XXII, 118090K (2 August 2021); https://doi.org/10.1117/12.2595080

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