Raman study of luminescent spark processed porous GaAs

M. Rojas-López, J. M. Gracia-Jiménez, M. A. Vidal, H. Navarro-Contreras, R. Silva-González, E. Gómez

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations

Abstract

A microRaman probe and a scanning electron microscope with energy dispersive spectroscopy system were used to analyze spark-processed porous GaAs samples prepared by high voltage discharges at low repetition rates in different ambients. The resulting material was found to be amorphous material, with amorphous-GaAs, for samples prepared in pure nitrogen. The cubic phases of As2O3 were substituted by the monoclinic phase of As2O3 'claudetite' for samples prepared under a low concentration of oxygen.

Original languageEnglish
Pages (from-to)622-627
Number of pages6
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume19
Issue number3
DOIs
StatePublished - 1 May 2001
Event13th International Vaccum Microelectronics Conference - Guangzhou, China
Duration: 14 Aug 200017 Aug 2000

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