Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 30, Issue 18, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201901789
Keywords
charge carrier scattering; electronic transport; energy filtering; microstructure; thermoelectric materials
Categories
Funding
- Israel Science Foundation (ISF) [1997/18]
- Carl E. Shustak Energy Research and Development Fund at the Technion-Israel Institute of Technology
Ask authors/readers for more resources
Exhaustive attempts are made in recent decades to improve the performance of thermoelectric materials that are utilized for waste heat-to-electricity conversion. Energy filtering of charge carriers is directed toward enhancing the material thermopower. This paper focuses on the theoretical concepts, experimental evidence, and the authors' view of energy filtering in the context of thermoelectric materials. Recent studies suggest that not all materials experience this effect with the same intensity. Although this effect theoretically demonstrates improvement of the thermopower, applying it poses certain constraints, which demands further research. Predicated on data documented in literature, the unusual dependence of the thermopower and conductivity upon charge carrier concentrations can be altered through the energy filtering approach. Upon surmounting the physical constraints discussed in this article, thermoelectric materials research may gain a new direction to enhance the power factor and thermoelectric figure of merit.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available