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The two faces of capacitance: New interpretations for electrical impedance measurements of perovskite solar cells and their relation to hysteresis

Jacobs, Daniel; Shen, Heping; Pfeffer, Florian; Peng, Jun; White, Thomas; Beck, Fiona; Catchpole, Kylie


Perovskite solar cells are notorious for exhibiting transient behavior not seen in conventional inorganic semiconductor devices. Significant inroads have been made into understanding this fact in terms of rapid ion migration, now a well-established property of the prototype photovoltaic perovskite MAPbI 3 and strongly implicated in the newer mixed compositions. Here, we study the manifestations of ion migration in frequency-domain small-signal measurements, focusing on the popular technique of...[Show more]

CollectionsANU Research Publications
Date published: 2018-12-11
Type: Journal article
Source: Journal of Applied Physics
DOI: 10.1063/1.5063259
Access Rights: Open Access


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