POS6-0877
Performance Enhancement of Flexible Thermoelectric Generators via PEDOT:PSS-Based Materials Coated on 3D Spacer Fibers
When and Where
Nov 30, -0001
12:00am - 12:00am
Presenter(s)
Saehaneul Jung (School of Materials Science & Engineering, Kookmin University)
Co-Author(s)
Abstract
Flexible and wearable thermoelectric generators (TEGs) have attracted significant attention as sustainable power sources capable of harvesting waste heat from the human body or the surrounding environment. Among various conducting polymers, PEDOT:PSS is considered a prime candidate due to its excellent flexibility, low thermal conductivity, and solution processability. However, its relatively low electrical conductivity and Seebeck coefficient remain limiting factors for practical thermoelectric performance.
In this study, we report a high-efficiency flexible three-dimensional(3D) thermoelectric generator fabricated by coating a PEDOT:PSS-based material onto a 3D spacer fiber matrix. The 3D spacer fiber substrate not only provides a large thickness that can effectively maintain a substantial temperature gradient across both ends of the fabric, but also offers excellent breathability and mechanical compressibility, thereby serving as an ideal structural platform for textile-based thermoelectric generators.
To optimize the thermoelectric properties, a chemical treatment was introduced into the PEDOT:PSS matrix. The introduction of these functional additives successfully rearranged the polymer chains and promoted favorable energetic interactions within the composite. Consequently, this tailored doping strategy effectively increased the Seebeck coefficient without severely compromising the electrical transport properties.
In this study, we report a high-efficiency flexible three-dimensional(3D) thermoelectric generator fabricated by coating a PEDOT:PSS-based material onto a 3D spacer fiber matrix. The 3D spacer fiber substrate not only provides a large thickness that can effectively maintain a substantial temperature gradient across both ends of the fabric, but also offers excellent breathability and mechanical compressibility, thereby serving as an ideal structural platform for textile-based thermoelectric generators.
To optimize the thermoelectric properties, a chemical treatment was introduced into the PEDOT:PSS matrix. The introduction of these functional additives successfully rearranged the polymer chains and promoted favorable energetic interactions within the composite. Consequently, this tailored doping strategy effectively increased the Seebeck coefficient without severely compromising the electrical transport properties.
