Fig. 14From: Potential and perspectives of halide perovskites in light emitting devices(Reprinted from Ref. [184]. © 2020 Wiley–VCH GmbH)a Energetic diagram of ion migration in mixed halide perovskites leading to phase segregation under light irradiation and b bond strength-tolerance factor plot of Pb-X in lead-halide perovskitesBack to article page