Cover – Journal of the American Chemical Society

Volume 143, Issue 24, pages 8949-9276

Light activation of lead-halide perovskites induces polaronic lattice distortions, here quantified with atomic-level precision. Electron-phonon coupling drives the crystal changes, which are unlocked upon charge-carrier recombination and in the absence of thermal effects. This study clarifies the structure-property relationships in out-of-equilibrium conditions, underpinning the developments of perovskite-based devices. 

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