Journal
NANO RESEARCH
Volume 14, Issue 10, Pages 3608-3615Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-021-3555-0
Keywords
thermoelectrics; semiconductors; porous structures; thermal conductivity
Categories
Funding
- US Navy
- Office of Naval Research located in Arlington, Virginia, USA [N000141912518]
- U.S. National Science Foundation [1905037]
- U.S. Department of Defense (DOD) [N000141912518] Funding Source: U.S. Department of Defense (DOD)
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1905037] Funding Source: National Science Foundation
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Thermoelectric technology can directly convert waste heat into electricity, recent advances in nanotechnology have improved thermoelectric materials' performance, thus increasing their feasibility in industry.
As more than 60% of worldwide consumed energy is unused and becomes waste heat every year, high-efficiency waste heat to power technologies are highly demanded for the conversion of wasted heat to electricity. Thermoelectrics which can convert the wasted heat directly into electricity represent a promising approach for energy recovery. Thermoelectric technology has existed for several decades, but its usage has been limited due to low efficiencies. Recent advances in nanotechnology have enabled the improving of thermoelectric properties which open up the thermoelectrics' feasibility in industry. In this paper, we present an overview of recent progress in increasing the porosity of thermoelectric materials from atomic scale to microscale, leading to the enhancement of figure of merit.
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