Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Enhancement of the thermoelectric performance of DPP based polymers by introducing one 3,4-ethylenedioxythiophene electron-rich building block

Author affiliations

Abstract

Donor–acceptor (D–A) type conjugated polymers are promising high performance thermoelectric (TE) materials due to their high carrier mobility, versatile structure and easily tuneable doping level. In this work, we have demonstrated a significant enhancement in the TE performance of diketopyrrolopyrrole (DPP) based D–A conjugated polymers by the incorporation of one 3,4-ethylenedioxythiophene (EDOT) building block. When one thiophene building block of PDPP-5T was substituted by EDOT, the HOMO level of PDPP-4T-EDOT could be increased and the coplanarity of the conjugated backbone was slightly enhanced, which could facilitate the efficient p-doping of the conjugated polymer. Compared with PDPP-5T, PDPP-4T-EDOT exhibited a much higher optimal TE power factor of 298.2 μW m−1 K−2 at a lower doping level, which is among the highest value for p-type organic thermoelectric materials based on D–A conjugated polymers. The results provide attractive guidance for the design and development of high performance thermoelectric conjugated polymers.

Graphical abstract: Enhancement of the thermoelectric performance of DPP based polymers by introducing one 3,4-ethylenedioxythiophene electron-rich building block

Back to tab navigation

Supplementary files

Article information


Submitted
01 Mar 2020
Accepted
15 May 2020
First published
15 May 2020

J. Mater. Chem. C, 2020, Advance Article
Article type
Paper

Enhancement of the thermoelectric performance of DPP based polymers by introducing one 3,4-ethylenedioxythiophene electron-rich building block

Z. Liu, Y. Hu, P. Li, J. Wen, J. He and X. Gao, J. Mater. Chem. C, 2020, Advance Article , DOI: 10.1039/D0TC01047B

Social activity

Search articles by author

Spotlight

Advertisements