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Two-dimensional halide perovskites featuring semiconducting organic building blocks

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Abstract

Two-dimensional (2D) organic–inorganic hybrid halide perovskites exhibit unique properties, such as long charge carrier lifetimes, high photoluminescence quantum efficiencies, and great tolerance to defects. Over the last several decades tremendous progress has occurred in the development of 2D layered halide perovskite semiconductor materials and devices. Chemical functionalization of 2D halide perovskites is an effective approach for tuning their electronic properties. A large amount of effort has been made in compositional engineering of the cations and anions in the perovskite lattice. However, few efforts have incorporated rationally designed semiconducting organic moieties into these systems to alter the overall chemical and optoelectronic properties of 2D perovskites. In fact, incorporation of large conjugated organic groups in the spatially confined inorganic perovskite matrix was found to be challenging, and this synthetic challenge hinders a deeper understanding of the materials’ structure–property relationships. Recently, exciting progress has been made regarding the molecular design, optical characterization, and device fabrication of novel 2D halide perovskite materials that incorporate functional organic semiconducting building blocks. In this article, we provide a timely review regarding this recent progress. Moreover, we discuss successes and current challenges regarding the synthesis, characterization, and device applications of such hybrid materials and provide a perspective on the true future promise of these advanced nanomaterials.

Graphical abstract: Two-dimensional halide perovskites featuring semiconducting organic building blocks

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Article information


Submitted
10 Apr 2020
Accepted
28 May 2020
First published
28 May 2020

Mater. Chem. Front., 2020, Advance Article
Article type
Review Article

Two-dimensional halide perovskites featuring semiconducting organic building blocks

Y. Gao, Z. Wei, S. Hsu, B. W. Boudouris and L. Dou, Mater. Chem. Front., 2020, Advance Article , DOI: 10.1039/D0QM00233J

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