Wei-Hsiang Chen

Wavelength-Switchable Surface Photovoltage Polarity in Quasi-2D Perovskite Heterojunctions Mediated by Exciton Confinement

Abstract Strong excitonic confinement in quasi-2D Ruddlesden–Popper perovskites gives rise to distinct photophysical behavior compared with their 3D analogues, yet how this confinement governs surface and interfacial photovoltage formation remains unresolved. We show that quasi-2...