Eur. Phys. J. B 46, 507-513 (2005)
https://doi.org/10.1140/epjb/e2005-00281-5

Raman scattering from GaP nanowires

¹ Laboratoire de Nanotechnologie et d'Instrumentation Optique, Université de Technologie de Troyes, 12 rue Marie Curie, BP 2060, 10010 Troyes Cedex, France
² Nanostructures Laboratory, Tsinghua University, 100084 Beijing, P.R. China
³ National Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, P.R. China

Corresponding author: ^a marc.lamy_de_la_chapelle@utt.fr

Received: 31 March 2005
Published online: 7 September 2005

Abstract

A complete Raman study of GaP nanowires is presented. By comparison with the Raman spectra of GaP bulk material, microcrystals and nanoparticles, we give evidence that the Raman spectrum is affected by the one-dimensional shape of the nanowires. The Raman spectrum is sensitive to the polarization of the laser light. A specific shape of the overtones located between 600 and 800 cm^-1 is actually a signature of the nanowires. Some phonon confinement and thermal behavior is also observed for nanowires.