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

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.
Authors:
;  [1]
  1. LITEN, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble (France)
Publication Date:
OSTI Identifier:
22257792
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 114; Journal Issue: 18; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM NITRIDES; BERYLLIUM OXIDES; CERAMICS; HEAT SINKS; INDIUM ARSENIDES; QUANTUM WIRES; SEMICONDUCTOR MATERIALS; THERMAL CONDUCTIVITY; ZINC SULFIDES