期刊
JOURNAL OF APPLIED PHYSICS
卷 116, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4904086
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资金
- Brazilian funding agency CNPq
- Materials Science, Engineering, and Commercialization program at Texas State University
The thermoelectric properties of indium nitride in the most stable wurtzite phase (w-InN) as a function of electron and hole concentrations and temperature were studied by solving the semiclassical Boltzmann transport equations in conjunction with ab initio electronic structure calculations, within Density Functional Theory. Based on maximally localized Wannier function basis set and the ab initio band energies, results for the Seebeck coefficient are presented and compared with available experimental data for n-type as well as p-type systems. Also, theoretical results for electric conductivity and power factor are presented. Most cases showed good agreement between the calculated properties and experimental data for w-InN unintentionally and p-type doped with magnesium. Our predictions for temperature and concentration dependences of electrical conductivity and power factor revealed a promising use of InN for intermediate and high temperature thermoelectric applications. The rigid band approach and constant scattering time approximation were utilized in the calculations. (C) 2014 AIP Publishing LLC.
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