Thermal conductivity of bulk and nanowire InAs, AlN, and BeO polymorphs from first principles

Journal Article · Thu Nov 14 00:00:00 EST 2013 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4827419· OSTI ID:22257792

Li, Wu; Mingo, Natalio ^[1]

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1. LITEN, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble (France)

We compute the thermal conductivity of the alternative zincblende (ZB) and wurtzite (WZ) phases of InAs, AlN, and BeO. The bulk thermal conductivity of the ZB phase of BeO is predicted to be even higher than that of its WZ phase (the highest amongst all ceramics used in electronic technology). Our calculations agree well with the available experimental measurements for bulk ZB InAs, WZ AlN, WZ BeO, and WZ and ZB InAs nanowires, and we provide predictions for the remaining cases. The predicted good thermal conductor ZB BeO might have interesting applications in improved heat sinks for high performance semiconductor electronics.

• OSTI ID: 22257792
• Journal Information: Journal of Applied Physics, Vol. 114, Issue 18; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ALUMINIUM NITRIDES
BERYLLIUM OXIDES
CERAMICS
HEAT SINKS
INDIUM ARSENIDES
QUANTUM WIRES
SEMICONDUCTOR MATERIALS
THERMAL CONDUCTIVITY
ZINC SULFIDES