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Hot carrier filtering in solution processed heterostructures: a paradigm for improving thermoelectric efficiency.

Authors :
Zhang Y
Bahk JH
Lee J
Birkel CS
Snedaker ML
Liu D
Zeng H
Moskovits M
Shakouri A
Stucky GD
Source :
Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2014 May; Vol. 26 (17), pp. 2755-61, 2618. Date of Electronic Publication: 2014 Jan 28.
Publication Year :
2014

Abstract

An approach based on a solution-based synthesis that produces a thermally stable Ag/oxide/S₂ Te₃ -Te metal-semiconductor heterostructure is described. With this approach, a figure of merit of zT = 1.0 at 460 K is achieved, a record for a heterostructured material made using wet chemistry. Combining experiments and theory shows that the large increase in the material's Seebeck coefficient results from hot carrier filtering.<br /> (© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Details

Language :
English
ISSN :
1521-4095
Volume :
26
Issue :
17
Database :
MEDLINE
Journal :
Advanced materials (Deerfield Beach, Fla.)
Publication Type :
Academic Journal
Accession number :
24474071
Full Text :
https://doi.org/10.1002/adma.201304419