A Wearable All‐Fabric Thermoelectric Generator

Publication/Creation Date
January 22 2019
Linden Allison (creator)
Trisha Andrew (creator)
Wearable Electronics Lab (Andrew Lab) (contributor)
University Of Massachusetts Amherst (contributor)
Media Type
Journal Article
Persuasive Intent

Wearable thermoelectric generators are a promising energy source for powering activity trackers and portable health monitors. However, known iterations of wearable generators have large form factors, contain expensive or toxic materials with low elemental abundance, and quickly reach thermal equilibrium with a human body, meaning that thermoelectric power can only be generated over a short period of wear. Here, an all‐fabric thermopile is created by vapor printing persistently p‐doped poly(3,4‐ethylenedioxythiophene) (PEDOT‐Cl) onto commercial cotton and this thermopile is integrated into a specially designed, wearable band that generates thermovoltages >20 mV when worn on the hand. It is shown that the reactive vapor coating process creates mechanically rugged fabric thermopiles that yield notably high thermoelectric power factors at low temperature differentials, as compared to solution‐processed counterparts. Further, best practices for naturally integrating thermopiles into garments are described, which allow for significant temperature gradients to be maintained across the thermopile despite continuous wear.
HCI Platform
Discursive Type
Location on Body
Marketing Keywords

Date archived
January 24 2019
Last edited
January 28 2019
How to cite this entry
Linden Allison, Trisha Andrew. (January 22 2019). "A Wearable All‐Fabric Thermoelectric Generator". Advanced Materials Technologies. Fabric of Digital Life. https://fabricofdigitallife.com/index.php/Detail/objects/3518