Статья

Multifunctional Organic–Inorganic Hybrid Perovskite Microcrystalline Engineering and Electromagnetic Response Switching Multi‐Band Devices

Jun YanKey Laboratory for Photonic and Electronic Bandgap Materials Ministry of Education School of Physics and Electronic Engineering Harbin Normal University Harbin 150025 ChinaQi ZhengSchool of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 ChinaShuangpeng WangJoint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Avenida da Universidade, Taipa Macao SAR 999078 ChinaYongzhi TianKey Laboratory of Materials Physics of Ministry of Education School of Physics and Microelectronics Zhengzhou University 450001 Zhengzhou ChinaWeiqiang GongKey Laboratory for Photonic and Electronic Bandgap Materials Ministry of Education School of Physics and Electronic Engineering Harbin Normal University Harbin 150025 ChinaFeng GaoKey Laboratory for Photonic and Electronic Bandgap Materials Ministry of Education School of Physics and Electronic Engineering Harbin Normal University Harbin 150025 ChinaJijun QiuSchool of Microelectronics Dalian University of Technology Dalian 116024 ChinaLin LiKey Laboratory for Photonic and Electronic Bandgap Materials Ministry of Education School of Physics and Electronic Engineering Harbin Normal University Harbin 150025 ChinaShuhui YangDepartment of Communication Engineering Communication University of China Beijing 100024 ChinaMao‐Sheng CaoSchool of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China

2023en

ABI

Аннотация

Abstract High‐efficiency electromagnetic (EM) functional materials are the core building block of high‐performance EM absorbers and devices, and they are indispensable in various fields ranging from industrial manufacture to daily life, or even from national defense security to space exploration. Searching for high‐efficiency EM functional materials and realizing high‐performance EM devices remain great challenges. Herein, a simple solution‐process is developed to rapidly grow gram‐scale organic–inorganic (MAPbX 3 , X = Cl, Br, I) perovskite microcrystals. They exhibit excellent EM response in multi bands covering microwaves, visible light, and X‐rays. Among them, outstanding microwave absorption performance with multiple absorption bands can be achieved, and their intrinsic EM properties can be tuned by adjusting polar group. An ultra‐wideband bandpass filter with high suppression level of −71.8 dB in the stopband in the GHz band, self‐powered photodetectors with tunable broadband or narrowband photoresponse in the visible‐light band, and a self‐powered X‐ray detector with high sensitivity of 3560 µC Gy air −1 cm −2 in the X‐ray band are designed and realized by precisely regulating the physical features of perovskite and designing a novel planar device structure. These findings open a door toward developing high‐efficiency EM functional materials for realizing high‐performance EM absorbers and devices.

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Идентификаторы

DOI: 10.1002/adma.202300015

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar