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Title: The use of strain to tailor electronic thermoelectric transport properties: A first principles study of 2H-phase CuAlO 2

Abstract

Using first principles calculations, the use of strain to adjust electronic transport and the resultant thermoelectric (TE) properties is discussed using 2H phase CuAlO 2 as a test case. Transparent oxide materials, such as CuAlO 2, a p-­type transparent conducting oxide (TCO), have recently been studied for high temperature thermoelectric power generators and coolers for waste heat. Given TCO materials with relative ease of fabrication, low cost of materials, and non-­toxicity, the ability to tailor them to specific temperature ranges, power needs, and size requirements, through the use of strain opens an interesting avenue. We find that strain can have a significant effect on these properties, in some cases detrimental and in others beneficial, including the potential for n-­type power factors larger than the highest p-type case. The physical reasons for this behavior are explained in the terms of the thermoelectric transport distribution and the Landauer distribution of modes.

Authors:
 [1];  [2]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1508961
Report Number(s):
BNL-211589-2019-JAAM
Journal ID: ISSN 0021-8979
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 125; Journal Issue: 8; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Witkoske, Evan, Guzman, David, Feng, Yining, Strachan, Alejandro, Lundstrom, Mark, and Lu, Na. The use of strain to tailor electronic thermoelectric transport properties: A first principles study of 2H-phase CuAlO2. United States: N. p., 2019. Web. doi:10.1063/1.5058275.
Witkoske, Evan, Guzman, David, Feng, Yining, Strachan, Alejandro, Lundstrom, Mark, & Lu, Na. The use of strain to tailor electronic thermoelectric transport properties: A first principles study of 2H-phase CuAlO2. United States. doi:10.1063/1.5058275.
Witkoske, Evan, Guzman, David, Feng, Yining, Strachan, Alejandro, Lundstrom, Mark, and Lu, Na. Tue . "The use of strain to tailor electronic thermoelectric transport properties: A first principles study of 2H-phase CuAlO2". United States. doi:10.1063/1.5058275.
@article{osti_1508961,
title = {The use of strain to tailor electronic thermoelectric transport properties: A first principles study of 2H-phase CuAlO2},
author = {Witkoske, Evan and Guzman, David and Feng, Yining and Strachan, Alejandro and Lundstrom, Mark and Lu, Na},
abstractNote = {Using first principles calculations, the use of strain to adjust electronic transport and the resultant thermoelectric (TE) properties is discussed using 2H phase CuAlO2 as a test case. Transparent oxide materials, such as CuAlO2, a p-­type transparent conducting oxide (TCO), have recently been studied for high temperature thermoelectric power generators and coolers for waste heat. Given TCO materials with relative ease of fabrication, low cost of materials, and non-­toxicity, the ability to tailor them to specific temperature ranges, power needs, and size requirements, through the use of strain opens an interesting avenue. We find that strain can have a significant effect on these properties, in some cases detrimental and in others beneficial, including the potential for n-­type power factors larger than the highest p-type case. The physical reasons for this behavior are explained in the terms of the thermoelectric transport distribution and the Landauer distribution of modes.},
doi = {10.1063/1.5058275},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 8,
volume = 125,
place = {United States},
year = {2019},
month = {1}
}

Journal Article:
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Works referenced in this record:

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