Origin and spectral degradation of the photoluminescence from a-SiO{sub x}

This paper reports for the first time on a spectral degradation of photoluminescence from a-SiO{sub x} that occurs due to the storage of the samples in ambient atmosphere. The spectra of samples with an initial emission peak E{sub PL,ini} > 2.16 eV shift to lower energies. The degraded spectra ha...

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Bibliographic Details
Published in:Journal of applied physics 2013-11, Vol.114 (19)
Main Authors: Kistner, J., Schubert, M. B.
Format: Article
Language:English
Subjects:
MATERIALS SCIENCE
PEAKS
PHOTOLUMINESCENCE
RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY
RECOMBINATION
SILICON OXIDES
SPECTRA
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Summary:This paper reports for the first time on a spectral degradation of photoluminescence from a-SiO{sub x} that occurs due to the storage of the samples in ambient atmosphere. The spectra of samples with an initial emission peak E{sub PL,ini} > 2.16 eV shift to lower energies. The degraded spectra have a common maximum at E{sub PL,deg} ≈ 2.16 eV. In the spectra of samples with E{sub PL,ini} 
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4829285