Thermoelectric Polymers and their Elastic Aerogels

Area of Science:

• Materials Science
• Polymer Science
• Electronics Engineering

Background:

• Electronically conducting polymers are key materials for printed and flexible electronics.
• Recent advancements include incorporating elasticity for stretchable electronics.
• Thermoelectric properties of conducting polymers, including low thermal conductivity and tunable Seebeck coefficients via redox reactions, have been discovered.

Purpose of the Study:

• To discuss the convergence of stretchable electronics and polymer thermoelectrics.
• To highlight the unique combination of elastic and thermoelectric properties in conducting polymers.
• To introduce basic concepts and current knowledge of conducting polymer thermoelectricity.

Main Methods:

• Review of existing literature on conducting polymers and thermoelectricity.
• Discussion of redox reactions for modulating electrical conductivity and Seebeck coefficients.
• Illustration of elastic thermoelectric conducting polymer aerogels for sensing applications.

Main Results:

• Conducting polymers exhibit unique thermoelectric properties combined with elasticity, a combination difficult to achieve with inorganic materials.
• Thermoelectric properties can be tuned by modulating electrical conductivity through redox reactions.
• Elastic thermoelectric conducting polymer aerogels show potential for use in electronic-skin applications, such as temperature and pressure sensors.

Conclusions:

• The combination of stretchable electronics and polymer thermoelectrics presents novel opportunities.
• Conducting polymers offer a unique platform for developing advanced, elastic thermoelectric devices.
• Elastic thermoelectric conducting polymer aerogels are promising for integrated sensing in electronic-skin technologies.