A Two-Dimensional Hybrid Lead Bromide Ferroelectric Semiconductor with an Out-of-Plane Polarization

A two-dimensional (2D) organic–inorganic hybrid perovskite (OIHP) material with out-of-plane ferroelectricity is the key to the miniaturization of vertical-sandwich-type ferroelectric optoelectronic devices. However, 2D OIHP ferroelectrics with out-of-plane polarization are still scarce, and effecti...

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Bibliographic Details
Published in:Inorganic chemistry 2023-08, Vol.62 (32), p.12634-12638
Main Authors: Fan, Chang-Chun, Liu, Cheng-Dong, Liang, Bei-Dou, Jin, Ming-Liang, Ju, Tong-Yu, Chai, Chao-Yang, Han, Xiang-Bin, Zhang, Wen
Format: Article
Language:English
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Summary:A two-dimensional (2D) organic–inorganic hybrid perovskite (OIHP) material with out-of-plane ferroelectricity is the key to the miniaturization of vertical-sandwich-type ferroelectric optoelectronic devices. However, 2D OIHP ferroelectrics with out-of-plane polarization are still scarce, and effective design strategies are lacking. Herein, we report a novel 2D Dion–Jacobson perovskite ferroelectric semiconductor synthesized by a rigid-to-flexible cationic tailoring strategy, achieving an out-of-plane polarization of 1.7 μC/cm2 and high photoresponse. Integrating out-of-plane ferroelectricity with excellent photoelectric properties affords a promising platform to investigate ferroelectricity-related effects in vertical optoelectronic devices.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.3c02057