Localized surface optical phonon mode in the InGaN/GaN multiple-quantum- wells nanopillars: Raman spectrum and imaging

Journal Article (Journal Article)

An interesting phonon mode at around 685-705 cm-1 was clearly observed in the Raman spectra of InGaN/GaN multiple-quantum-wells nanopillars with different diameters at room temperature. The Raman peak position of this mode is found to show a distinct dependence on the nanopillar size, which is in well agreement with theoretical calculation of the surface optical (SO) phonon modes of nanopillars. Moreover, this kind of SO phonon was evidenced to be located on the pillar surface by using scanning confocal micro-Raman microscopy. © 2011 American Institute of Physics.

Full Text

Duke Authors

Cited Authors

  • Zhu, JH; Ning, JQ; Zheng, CC; Xu, SJ; Zhang, SM; Yang, H

Published Date

  • September 12, 2011

Published In

Volume / Issue

  • 99 / 11

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.3640233

Citation Source

  • Scopus