journal article·2023-03-06

Room-Temperature Interfacial Synthesis of Vinylene-Bridged Two-Dimensional Covalent Organic Framework Thin Film for Nonvolatile Memory

Dongchuang Wu, Qiang Che, Haidong He, Mohamed E. El-Khouly, Senhe Huang, Xiaodong Zhuang, Bin Zhang, Yu Chen

ACS Materials Letters· Volume 5· Issue 3
Publisher page

Abstract

The development of large-area two-dimensional all sp 2 carbon-linked covalent organic frameworks (COFs) film still remains a challenge, because of the shortage of the effective synthesis methods and optimal building blocks. To date, all vinylene-bridged COFs synthesized by solvothermal method at high temperatures and pressures are insoluble and unprocessable powders, which lead to a formidable challenge in fabricating thin film-based electronic and optoelectronic devices. By using a liquid–liquid interface polymerization strategy, a vinylene-bridged COF film with a complete sp 2 -carbon skeleton has been successfully synthesized for the first time at room temperature. The COF nanospheres initially formed at the liquid–liquid interface slowly transmuted themselves into self-standing COF thin films with long-range ordered arrangement by covalent self-assembly. The as-fabricated electronic device with a configuration of Al/COFs/ITO exhibited a nonvolatile rewritable memory effect with a low switching-on voltage of +0.84 V. Associated with its bistable switching performance, this device is capable of executing simple “OR” logic operations.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Covalent Organic Framework Applications · Luminescence and Fluorescent Materials · Advanced Photocatalysis Techniques

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

Affiliations

Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China

Minhang Hospital, Fudan University, 170 Xinsong Road, Shanghai 201199, China

Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology (E-JUST), Alexandria 21934, Egypt

The meso-Entropy Matter Lab, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China

Funding

Natural Science Foundation of Shanghai · Academy of Scientific Research and Technology · Central University Basic Research Fund of China · National Natural Science Foundation of China · Shanghai Rising-Star Program

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