Theory of Hysteresis in Halide Perovskites by Integration of the Equivalent Circuit.

ABSTRACT: Perovskite solar cells show a number of internal electronic-ionic effects that produce hysteresis in the current-voltage curves and a dependence of the temporal response on the conditions of the previous stimulus applied to the sample. There are many models and explanations in the literature, but predictive methods that may lead to an assessment of the solar cell behavior based on independent measurements are needed. Here, we develop a method to predict time domain response starting from the frequency domain response measured by impedance spectroscopy over a collection of steady states. The rationale of the method is to convert the impedance response into a set of differential equations, in which the internal state variables emerge naturally and need not be predefined in terms of a physica

SUBMITTER: Bisquert J 

PROVIDER: S-EPMC9718316 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature