Recent Advances in Polyaniline-Based Thermoelectric Composites

Polyaniline (PANI)-based thermoelectric (TE) materials have attracted considerable attention for flexible electronic energy harvesting devices because of properties such as solution processibility, excellent environmental stability, and low cost. However, the typical opposite dependence between electrical conductivity and Seebeck coefficient impedes their development, and tremendous efforts have been devoted to increasing their TE efficiency. This mini review focuses on key strategies in developing high-performance PANI-based TE materials, including doping engineering (fine-tuning of doping level), modulation of molecular orientation, inorganic nanoparticles incorporation to combine the merits of their components, interface engineering that introduces interfacial interactions and an energy-filtering effect, and other strategies. With properly optimized components, microstructure, and fabrication processing, which aid in the carrier transport properties, the overall performance of PAN I-based TE composites has been greatly enhanced, promoting the improvement of PANI-based composites for sustainable energy utilization. [GRAPHICS] .

Automated summary

This mini review focuses on key strategies in developing high-performance PANI-based TE materials, including doping engineering, modulation of molecular orientation, inorganic nanoparticles incorporation, interface engineering, and other strategies, which have greatly enhanced the overall performance of PANI-based TE composites for sustainable energy utilization.