DataVXAdvanced MaterialsPaper
journal article·2023-06

Moisture‐Tailored 2D Dion–Jacobson Perovskites for Reconfigurable Optoelectronics

Mengyu Guan, Yunlong Xie, Yang Zhang, Zixin Gu, Lei Qiu, Zhuojie He, Bingkun Ye, Ady Suwardi, Zhigao Dai, Guogang Li, Guangwei Hu

Advanced Materials· Volume 35· Issue 22
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Source abstract

Abstract

Abstract Humidity‐ and moisture‐induced degradation has been a longstanding problem in perovskite materials, affecting their long‐term stability during applications. Counterintuitively, the moisture is leveraged to tailor the reversible hydrochromic behaviors of a new series of 2D Dion–Jacobson (DJ) perovskites for reconfigurable optoelectronics. In particular, the hydrogen bonds between organic cations and water molecules can be dynamically modulated via moisture removal/exposure. Remarkably, such modulation confines the movement of the organic cations close to the original position, preventing their escape from crystal lattices. Furthermore, this mechanism is elucidated by theoretical analysis using first‐principles calculations and confirmed with the experimental characterizations. The reversible fluorescent transition 2D DJ perovskites show excellent cyclical properties, presenting untapped opportunities for reconfigurable optoelectronic applications. As a proof‐of‐concept demonstration, an anti‐counterfeiting display is shown based on patterned reversible 2D DJ perovskites. The results represent a new avenue of reconfigurable optoelectronic application with 2D DJ perovskites for humidity detection, anti‐counterfeiting, sensing, and other emerging photoelectric intelligent technologies.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Advanced Sensor and Energy Harvesting Materials · Luminescence and Fluorescent Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 P. R. China

Institute for Advanced Materials Hubei Normal University Huangshi 435002 P. R. China

School of Materials Science and Engineering Center of Advanced Analysis & Gene Sequencing Zhengzhou University Zhengzhou 450001 P. R. China

Institute of Materials Research and Engineering (IMRE) A*STAR (Agency for Science, Technology and Research) 2 Fusionopolis Way Singapore 138634 Singapore

Shenzhen Research Institute China University of Geosciences Shenzhen 518063 P. R. China

Zhejiang Institute China University of Geosciences Hangzhou 311305 P. R. China

School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore

Funding

National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · Natural Science Foundation of Guangdong Province · Natural Science Foundation of Zhejiang Province · Natural Science Foundation of Hubei Province

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