期刊
ADVANCED FUNCTIONAL MATERIALS
卷 32, 期 23, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202201120
关键词
covalent organic frameworks; electrochemical transistors; neuromorphic memory; thin films
类别
资金
- King Abdullah University of Science and Technology (KAUST)
Covalent organic framework (COF) thin films have been successfully utilized as channel materials in electrical double-layer (EDL) electrochemical transistors, exhibiting similar dynamic behavior to biological synapses.
Covalent organic framework (COF) thin films have been successfully prepared and utilized as a channel material in electrical double-layer (EDL) electrochemical transistors. 4,4 '-azodianiline (Azo) and 1,3,5-triformylphloroglucinol(Tp) precursors are introduced to prepare azo (-N(sic)N-) functionalized ss-keto-enamine COF (Tp-Azo) thin films. The EDL transistor exhibits a switching ratio of 10(3) times, a low threshold voltage of 0.6 V, and a field-effect mobility of 0.53 cm(2) V-1 s(-1). The dynamic behavior of the transistor under different input signals shows responses, which are very similar to the biological synaptic behavior, indicating that the COF devices can be used as artificial synapses. This report opens a new direction in covalent-organic framework development in iontronic applications.
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