Transforming thermal energy into electric energy and vice versa needs the decoupling of electrical transport from thermal transport. An innovative strategy is proposed by forming/disrupting electrically triggered conductive nanofilaments within semiconducting thin films to switch thermoelectric properties between two states without further material modification and manufacturing processes. It can also controllably adjust the degree of decoupling, providing a potential resolution and performance adjustability for heat/coldness control or power consumption reduction on demand.
KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: J.R.D.R. and C.-F.K. contributed equally to this work. This work was supported by the King Abdullah University of Science & Technology (KAUST) baseline fund and KAUST Solar Center Seed fund. The authors are also immensely grateful to Mina L. Mynar, who provided valuable insight and expertise in the manuscript through discussion.