✦ LIBER ✦

Synthesis and thermal diffusion of nanostructured porous GaAs

✍ Scribed by R. Srinivasan; K. Ramachandran

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 169 KB
Volume: 43
Category: Article
ISSN: 0232-1300
DOI: 10.1002/crat.200811134

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✦ Synopsis

Abstract

Nanostructured porous GaAs samples were prepared by electrochemical anodic dissolution of GaAs for various current densities and etching periods. The samples are characterized by SEM and photoluminescence (PL) where a blue shift is observed in PL. Thermal properties of this nanostructured GaAs are then studied by photoacoustic (PA) spectroscopy, where one order decrease in thermal conductivity of porous GaAs compared to bulk is observed. Further it is shown that the thermal conductivity of porous GaAs decreases with decrease in size of the particles. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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