Open Access System for Information Sharing

Login Library

 

Article
Cited 9 time in webofscience Cited 14 time in scopus
Metadata Downloads

Light-promoted synthesis of highly-conjugated crystalline covalent organic framework

Title
Light-promoted synthesis of highly-conjugated crystalline covalent organic framework
Authors
Kim, S.Choi, H.C.
Date Issued
Dec-2019
Publisher
Springer Nature
Abstract
Low electrical conductivity caused by low degree of π-conjugation and structural disorders induces critical limitations in electronic applications of covalent organic frameworks (COFs). Here we focus on improving the electrical properties of COFs by synthesis of highly conjugated and crystalline COF (hcc-COF). Addition of a small amount of water and acetic acid induces the efficient reversible dynamic imine condensation reaction that is required to obtain uniform and crystalline products. Also, simulated sunlight irradiation facilitates the reversible imine condensation reaction, and achieves formation of hcc-COF with high-yield within short reaction time. The obtained hcc-COF has an extended π-conjugated structure along the lateral direction and an inclined stacking structure. The intrinsic electron transport properties along the in-plane direction are evaluated using a hcc-COF film grown on a water surface from a polarity-controlled precursor solution. To the best of our knowledge, our hcc-COF film shows the highest reported electrical conductivity for highly conjugated organic porous polymers. © 2019, The Author(s).
URI
http://oasis.postech.ac.kr/handle/2014.oak/100477
ISSN
2399-3669
Article Type
Article
Citation
Communications Chemistry, vol. 2, no. 1, 2019-12
Files in This Item:

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Views & Downloads

Browse