Título:
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Optical energies of AllnN epilayers
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Autores:
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Nogales Díaz, Emilio
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Tipo de documento:
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texto impreso
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Editorial:
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American Institute of Physics, 2008-04-01
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física del estado sólido
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Materia = Ciencias: Física: Física matemática
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Tipo = Artículo
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Resumen:
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Optical energy gaps are measured for high-quality Al_(1-x)In_xN-on-GaN epilayers with a range of compositions around the lattice match point using photoluminescence and photoluminescence excitation spectroscopy. These data are combined with structural data to determine the compositional dependence of emission and absorption energies. The trend indicates a very large bowing parameter of ? to 6 eV and differences with earlier reports are discussed. Very large Stokes' shifts of 0.4-0.8 eV are observed in the composition range 0.13
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En línea:
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https://eprints.ucm.es/45137/1/NogalesD%C3%ADazE%2003%20%20LIBRE.pdf
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