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Gas-Liquid Interface Route to Hybrid Copper Bromine Perovskite Single-Crystal Membrane with Dielectric Transitions and Ferromagnetic Exchanges.

Authors :
Wu LK
Feng Y
Zou QH
Jiang LL
Wang ZJ
Wang N
Ye HY
Li JR
Source :
Inorganic chemistry [Inorg Chem] 2024 Apr 15; Vol. 63 (15), pp. 6972-6979. Date of Electronic Publication: 2024 Apr 03.
Publication Year :
2024

Abstract

Single-crystal membranes (SCMs) show great promise in the fields of sensors, light-emitting diodes, and photodetection. However, the growth of a large-area single-crystal membranes is challenging. We report a new organic-inorganic SCMs [HCMA] <subscript>2</subscript> CuBr <subscript>4</subscript> (HCMA = cyclohexanemethylamine) crystallized at the gas-liquid interface. It also has low-temperature ferromagnetic order, high-temperature dielectric anomalies, and narrow band gap indirect semiconductor properties. Specifically, the reversible phase transition of the compound occurs at 350/341 K on cooling/heating and exhibits dielectric anomalies and stable switching performance near the phase transition temperature. The ferromagnetic exchange interaction in the inorganic octahedra and the organic layer enables ferromagnetic ordering at low-temperature 10 K. Finally, the single crystal exhibits an indirect semiconducting property with a narrow band gap of 0.99 eV. Such rich multichannel physical properties make it a potential application in photodetection, information storage and sensors.

Details

Language :
English
ISSN :
1520-510X
Volume :
63
Issue :
15
Database :
MEDLINE
Journal :
Inorganic chemistry
Publication Type :
Academic Journal
Accession number :
38567571
Full Text :
https://doi.org/10.1021/acs.inorgchem.4c00502