A-Cation-Dependent Structure-Optical Property Relationships of Halide Perovskite Heterostructures with Complex Interfaces.

ABSTRACT: Halide perovskite heterostructures offer promising interfacial interactions for energy conversion, yet challenges in synthesizing structurally well-defined systems limit detailed investigations into structure-property relationships. Here, we report the synthesis of compositionally controlled 3D/3D and 3D/2D halide perovskite heterostructures using evaporation crystallization-polymer pen lithography (EC-PPL) and single-particle analysis of their properties. By systematically varying A-site-cation combinations and crystal dimensions, we show that heterointerfaces induce local lattice distortions that modulate vibrational dynamics and electron-phonon coupling. These interfacial effects result in significantly extended carrier lifetimes compared to compositionally similar pure phases. Raman sp

SUBMITTER: Shin D 

PROVIDER: S-EPMC12594311 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature