CC BY-NC-ND 4.0 · Organic Materials 2020; 02(03): 223-228
DOI: 10.1055/s-0040-1714145
Short Communication

A Water-Dispersible Quinoid-Resonant Conducting Polymer for Organic Electronics

a  Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
b  School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
a  Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
b  School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
› Author Affiliations
Funding Information We thank the National Key Research and Development Program of China (No. 2019YFA0705900 and 2017YFA0204701) funded by MOST and the National Natural Science Foundation of China (No. 21661132006, 21572234, and 91833304) for the financial support.


Developing stable and solution-processable highly conductive polymers has been the research goal in organic electronics since the first demonstration of metallic conductive polyacetylene. Here, we used a unique quinoid-resonant building block thieno[3,4-b]thiophene (TbT) to develop a new water-dispersible conducting polymer, PTbT-Me:PSS. Linear polymerization and large surfactant counterion, poly(styrenesulfonate) (PSS), were introduced, which enabled a high electrical conductivity of 68 S cm−1 and exhibited water-dispersible property. Interchain bipolaron was found in PTbT-Me:PSS when compared with polaron in PEDOT:PSS in their conducting mechanism. Moreover, we applied this highly conductive PTbT-Me:PSS as the solution-processed polymer thermoelectric material and a decent power factor of 3.1 μW m−1 K−2 was achieved.

Supporting Information

Supporting information for this article is available online at

Supporting Information

Publication History

Received: 11 May 2020

Accepted: 04 June 2020

Publication Date:
20 August 2020 (online)

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