Electrochemical Effects in Thermoelectric Polymers

William B. Chang, Haiyu Fang, Jun Liu, Christopher M. Evans, Boris Russ, Bhooshan C. Popere, Shrayesh N. Patel, Michael L. Chabinyc, Rachel A. Segalman

Research output: Contribution to journalArticlepeer-review

Abstract

Conductive polymers such as PEDOT:PSS hold great promise as flexible thermoelectric devices. The thermoelectric power factor of PEDOT:PSS is small relative to inorganic materials because the Seebeck coefficient is small. Ion conducting materials have previously been demonstrated to have very large Seebeck coefficients, and a major advantage of polymers over inorganics is the high room temperature ionic conductivity. Notably, PEDOT:PSS demonstrates a significant but short-term increase in Seebeck coefficient which is attributed to a large ionic Seebeck contribution. By controlling whether electrochemistry occurs at the PEDOT:PSS/electrode interface, the duration of the ionic Seebeck enhancement can be controlled, and a material can be designed with long-lived ionic Seebeck enhancements.

Original languageEnglish (US)
Pages (from-to)455-459
Number of pages5
JournalACS Macro Letters
Volume5
Issue number4
DOIs
StatePublished - Apr 19 2016
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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