Phonon Interaction in the Luminescence of Porous Silicon

It is found that the band width of a Gaussian-like luminescence spectrum of porous Si depends strongly on chemical etching time after anodization of crystalline Si. The narrowest luminescence band observed could be explained in terms of the radiative recombination of localized excitons with strong p...

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Veröffentlicht in:Japanese Journal of Applied Physics 1995-01, Vol.34 (S1), p.176
Hauptverfasser: Murayama, Kazuro, Komatsu, Hitoshi, Miyazaki, Seiichi, Hirosi, Masataka
Format: Artikel
Sprache:eng
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Zusammenfassung:It is found that the band width of a Gaussian-like luminescence spectrum of porous Si depends strongly on chemical etching time after anodization of crystalline Si. The narrowest luminescence band observed could be explained in terms of the radiative recombination of localized excitons with strong phonon coupling, while the broader luminescence band arises from the inhomogeneous broadening due to size distribution of Si nanostructures in the porous Si.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAPS.34S1.176