Capturing anharmonicity in a lattice thermal conductivity model for high-throughput predictions
Journal Article
·
· Chemistry of Materials
- Northwestern Univ., Evanston, IL (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Colorado School of Mines, Golden, CO (United States)
- Colorado School of Mines, Golden, CO (United States)
- 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
Similar Records
Revisiting lattice thermal transport in PbTe: The crucial role of quartic anharmonicity
Lattice Anharmonicity and Thermal Conductivity from Compressive Sensing of First-Principles Calculations
Journal Article
·
Sun Aug 12 20:00:00 EDT 2018
· Applied Physics Letters
·
OSTI ID:1472120
Lattice Anharmonicity and Thermal Conductivity from Compressive Sensing of First-Principles Calculations
Journal Article
·
Wed Oct 01 00:00:00 EDT 2014
· Physical Review Letters
·
OSTI ID:1165812