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Capturing anharmonicity in a lattice thermal conductivity model for high-throughput predictions

Journal Article · · Chemistry of Materials
 [1];  [2];  [3];  [2];  [4];  [1];  [1];  [1];  [4];  [2];  [2]
  1. Northwestern Univ., Evanston, IL (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States); Colorado School of Mines, Golden, CO (United States)
  3. Colorado School of Mines, Golden, CO (United States)
  4. Univ. of Colorado, Boulder, CO (United States)
High-throughput, low-cost, and accurate predictions of thermal properties of new materials would be beneficial in fields ranging from thermal barrier coatings and thermoelectrics to integrated circuits. To date, computational efforts for predicting lattice thermal conductivity (κL) have been hampered by the complexity associated with computing multiple phonon interactions. In this work, we develop and validate a semiempirical model for κL by fitting density functional theory calculations to experimental data. Experimental values for κL come from new measurements on SrIn2O4, Ba2SnO4, Cu2ZnSiTe4, MoTe2, Ba3In2O6, Cu3TaTe4, SnO, and InI as well as 55 compounds from across the published literature. Here, to capture the anharmonicity in phonon interactions, we incorporate a structural parameter that allows the model to predict κL within a factor of 1.5 of the experimental value across 4 orders of magnitude in κL values and over a diverse chemical and structural phase space, with accuracy similar to or better than that of computationally more expensive models.
Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Organization:
NREL Laboratory Directed Research and Development (LDRD); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1352998
Report Number(s):
NREL/JA--5K00-68399
Journal Information:
Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 6 Vol. 29; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Thermoelectric Properties of Scandium Sesquitelluride journal March 2019
Machine Learning Approaches for Thermoelectric Materials Research journal November 2019
Achieving zT > 2 in p-Type AgSbTe 2− x Se x Alloys via Exploring the Extra Light Valence Band and Introducing Dense Stacking Faults journal December 2017
Computationally guided discovery of thermoelectric materials journal August 2017
A strategy to apply machine learning to small datasets in materials science journal May 2018
Empirical modeling of dopability in diamond-like semiconductors journal December 2018
Search for new thermoelectric materials with low Lorenz number journal January 2017
SnO as a potential oxide thermoelectric candidate journal January 2017
Metal phosphides as potential thermoelectric materials journal January 2017
Origins of ultralow thermal conductivity in 1-2-1-4 quaternary selenides journal January 2019
A computational survey of semiconductors for power electronics journal January 2019
Vibrational properties of CdGa 2 S 4 at high pressure journal March 2019
A scattering rate model for accelerated evaluation of lattice thermal conductivity bypassing anharmonic force constants journal May 2019
Perspective on ab initio phonon thermal transport journal August 2019
The 2019 materials by design roadmap journal October 2018
Band Structures and Transport Properties of High-Performance Half-Heusler Thermoelectric Materials by First Principles journal May 2018

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