Photostimulus-Responsive Large-Area Two-Dimensional Covalent Organic Framework Films

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

141 Scopus Citations
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Author(s)

  • Fei Yu
  • Wenbo Liu
  • Bang Li
  • Dan Tian
  • Jing-Lin Zuo

Detail(s)

Original languageEnglish
Pages (from-to)16101-16104
Journal / PublicationAngewandte Chemie - International Edition
Volume58
Issue number45
Online published4 Sept 2019
Publication statusPublished - 4 Nov 2019
Externally publishedYes

Abstract

Using an external stimulus to modulate the electronic structure of covalent organic frameworks (COFs) is very important because such a response will endow them with additional functions. A two-dimensional (2D) COF, constructed from a photo-responsive unit (1,2-bis(5-formyl-2-methylthien-3-yl)cyclopentene), can reversibly switch its electrical conductivity 200 times from low state (the open form) to high state (the closed form) upon irradiation with UV light and reversible with visible light. This reversible phenomenon can be monitored through a circuit containing a light-emitting diode (LED). Photoinduced ring-closing/opening reactions do not destroy the integrity of the frameworks, and both processes follow logarithmic carrier generation with time. Moreover, the correlation between COFs electronic properties and changes in photoinduced kinetics and absorption curves has been demonstrated.

Research Area(s)

  • covalent organic frameworks, electrical switching, external stimuli, photostimulus

Citation Format(s)

Photostimulus-Responsive Large-Area Two-Dimensional Covalent Organic Framework Films. / Yu, Fei; Liu, Wenbo; Li, Bang et al.
In: Angewandte Chemie - International Edition, Vol. 58, No. 45, 04.11.2019, p. 16101-16104.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review