Study of thermoelectric properties of indium nitride nanowire

✍ Scribed by Huang, Hung-Hsun ;Lu, I-Lin ;Wu, Yuh-Renn

• Book ID: 105366061
• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 653 KB
• Volume: 208
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.201001047

✦ Synopsis

Abstract

In this paper, we studied the thermoelectric properties of a free‐standing InN nanowire with wire size ranging from 6 to 100 nm. With elastic continuum model, we calculated the phonon dispersion curves to obtain the phonon group velocity. The Callaway model has been applied to obtain the temperature‐dependent thermal conductivity. We employed the Monte Carlo method to obtain the mobility and electrical conductivity with different doping concentration and temperature.

Finally, the figures of merit ZT have been obtained by the combination of the electrical and thermal properties of InN nanowire. Our results suggest that the thermoelectric properties of InN nanowire are strongly influenced by the carrier density, temperature and nanowire size. The optimization condition for designing the thermoelectric device has been studied in this paper.