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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Rojas López, Marlon | - |
dc.date.accessioned | 2012-12-18T01:50:21Z | - |
dc.date.available | 2012-12-18T01:50:21Z | - |
dc.date.issued | 2012-12-17 | - |
dc.identifier.uri | http://www.repositoriodigital.ipn.mx/handle/123456789/9087 | - |
dc.description | Article | es |
dc.description.abstract | We have analyzed spark-processed porous GaAs ~spp-GaAs! samples prepared by the application of high-voltage discharges at low repetition rates ~20 Hz! in different ambients, ranging from pure nitrogen to pure oxygen flow, using a microRaman probe and a scanning electron microscope in combination with an energy dispersive spectroscopy system ~SEM-EDS!.We found that for samples prepared in pure nitrogen, the resulting material is basically amorphous material, with amorphous-GaAs with some cubic phase of As2O3 also present. For samples prepared under even a low concentration of oxygen, 20:1, we find that the cubic phase of As2O3 is substituted by the monoclinic phase of As2O3 ‘‘claudetite.’’ SEM micrographs show the resultant morphologies obtained that exhibit a porous, granular, agglomerated granular appearance. EDS and Raman suggest that the claudetite phase of As2O3 and As2O5 play a contributing role in the green-blue photoluminescence emitted by spp-GaAs. © 2001 American Vacuum Society. | es |
dc.description.sponsorship | Instituto Politécnico Nacional CIBA Tlaxcala | es |
dc.language.iso | en | es |
dc.subject | GaAs | es |
dc.title | Raman study of luminescent spark processed porous GaAs | es |
dc.type | Article | es |
dc.description.especialidad | Medico-Biológicas | es |
dc.description.tipo | es | |
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Pages from 2001_Journal_Vacuum_Science_Technology B_GaAs.pdf | 16.72 kB | Adobe PDF | Visualizar/Abrir |
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