2016 journal article

Electrochemical Effects in Thermoelectric Polymers

ACS MACRO LETTERS, 5(4), 455–459.

By: W. Chang*, H. Fang, J. Liu n, C. Evans, B. Russ*, B. Popere, S. Patel, M. Chabinyc, R. Segalman

co-author countries: United States of America 🇺🇸
Source: Web Of Science
Added: August 6, 2018

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.