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dc.contributor.author | Martínez Criado, Gema | |
dc.contributor.author | Miskys, C. R. | |
dc.contributor.author | Cros Stotter, Ana | |
dc.contributor.author | Ambacher, O. | |
dc.contributor.author | Cantarero Sáez, Andrés | |
dc.contributor.author | Stutzmann, M. | |
dc.date.accessioned | 2010-06-21T10:09:57Z | |
dc.date.available | 2010-06-21T10:09:57Z | |
dc.date.issued | 2001 | |
dc.identifier.citation | MARTÍNEZ CRIADO, G. ; MISKYS, C.R. ; CROS STOTTER, A. ; AMBACHER, O. ; CANTARERO, A. ; STTZMANN, M. Photoluminescence study of excitons in homoepitaxial GaN. En: Journal of Applied Phisics, 2001, vol. 90, no. 11 | en |
dc.identifier.uri | http://hdl.handle.net/10550/13015 | |
dc.description.abstract | High-resolution photoluminescence spectra have been measured in high-quality homoepitaxial GaN grown on a free-standing GaN substrate with lower residual strain than in previous work. Unusually strong and well-resolved excitonic lines were observed. Based on free- and bound exciton transitions some important GaN parameters are derived. The Arrhenius plot of the free A exciton recombination yields a binding energy of 24.7 meV. Based on this datum, an accurate value for the band-gap energy, EG(4.3 K) = 3.506 eV, can be given. From the donor bound excitons and their “two-electron” satellites, the exciton localization energy and donor ionization energy are deduced. Finally, estimates of the electron and hole masses have been obtained within the effective mass approximation. | en_US |
dc.language.iso | en | en |
dc.subject | Gallium compounds ; III-V semiconductors ; Wide band gap semiconductors ; Semiconductor epitaxial layers ; Photoluminescence ; Excitons ; Effective mass | en |
dc.title | Photoluminescence study of excitons in homoepitaxial GaN | en |
dc.type | journal article | es_ES |
dc.subject.unesco | UNESCO::FÍSICA | en |
dc.identifier.doi | 10.1063/1.1413713 | en |
dc.type.hasVersion | VoR | es_ES |
dc.identifier.url | http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JAPIAU000090000011005627000001&idtype=cvips&prog=normal&doi=10.1063/1.1413713 | en |