Work

Rethinking organic–inorganic interfacial steric hindrance in two-dimensional metal-halide perovskites

Year: 2026

Type: article

Abstract: Layered organic–inorganic hybrid materials, particularly layered perovskites, are attractive in photonics and optoelectronics whose properties are strongly governed by long-range organic interactions. However, rational control of these interactions remains challenging due to the lack of suitable structural descriptors at the organic–inorganic interface. Here, we investigate hydrogen-bonded organic framework alignment in layered perovskites and show its tunability via both inorganic metal-halide and organic halide substitution, which modulates interfacial steric hindrance. This effect is quantified using the plane spacing between organic substituents and inorganic axial halides. Our results highlight interface engineering as a route to control long-range ordering in layered hybrids.

Source: MRS Communications

DOI: 10.1557/s43579-026-01032-8

Authors: Wai Loon Chooi, Ichchha, Yue Wang, Vladislav Klepov, Wenhao Shao

Institution: University of Georgia

Language: English

Topic: Perovskite Materials and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,390

Funder: Office of Research, University of Georgia