Exploiting pi-pi Stacking for Stretchable Semiconducting Polymers

Cited 19 time in webofscience Cited 0 time in scopus
  • Hit : 145
  • Download : 0
Although intermolecular charge transport is known to occur via pi-pi stacking, the influence of pi-pi stacking on the mechanical properties of polymers has received little attention compared with other dynamic noncovalent interactions. Herein, we demonstrate a method to enhance stretchability via lowering crystallinity and increasing pi-pi stacking of thiophene-based random copolymer chains, which causes pi-pi stacking-induced polymer networks to form within the fully conjugated semiconducting polymer matrix. The polymer networks contain coiled amorphous chains that aid energy dissipation when the polymer film is subjected to strain; furthermore, the pi-pi stacking prevents the chains from irreversible sliding out of place due to the applied strain and provides interchain charge transport. Consequently, we are able to improve the polymer's mechanical properties such as elongation at break, tensile strength, and toughness along with charge mobility. Additionally, our polymer shows great tolerance to a 40% strain without a decrease in mobility while maintaining a stable electrical performance even after 5000 stretching cycles at 30% strain.
Publisher
AMER CHEMICAL SOC
Issue Date
2018-04
Language
English
Article Type
Article
Citation

MACROMOLECULES, v.51, no.7, pp.2572 - 2579

ISSN
0024-9297
DOI
10.1021/acs.macromol.8b00093
URI
http://hdl.handle.net/10203/241572
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 19 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0