Conductive triethylene glycol monomethyl ether substituted polythiophenes with high stability in the doped state

Dushanthi S. Dissanayake, Samodha S. Gunathilake, Chinthaka M. Udamulle Gedara, Jia Du, Sang Ha Yoo, Youngmin Lee, Qing Wang, Enrique D. Gomez, Michael C. Biewer, Mihaela C. Stefan

Research output: Contribution to journalArticle

Abstract

Synthesis of two conducting polymers containing 3-hexylthiophene and 3-[2-(2-(2-methoxyethoxy)ethoxy)ethoxy]thiophene is demonstrated. In thin-film transistors, the high-molecular-weight polymer shows an average mobility of 4.2 × 10 −4 cm 2 V −1 s −1 . Most importantly, the polymers have high conductivity upon doping with iodine and also have high stability in the doped state with high conductivities measured even after 1 month. Furthermore, the doping causes transparency to thin films of the polymer and the films are resistant to common organic solvents. All these properties indicate a great potential for the iodine-doped polymer to be used as an alternative to commercially available poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate).

Original languageEnglish (US)
Pages (from-to)1079-1086
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume57
Issue number10
DOIs
StatePublished - May 15 2019

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All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

Dissanayake, D. S., Gunathilake, S. S., Udamulle Gedara, C. M., Du, J., Yoo, S. H., Lee, Y., Wang, Q., Gomez, E. D., Biewer, M. C., & Stefan, M. C. (2019). Conductive triethylene glycol monomethyl ether substituted polythiophenes with high stability in the doped state. Journal of Polymer Science, Part A: Polymer Chemistry, 57(10), 1079-1086. https://doi.org/10.1002/pola.29362