Origin of visible photoluminescence from porous silicon as studied by Raman spectroscopy

Roy, A and Jayaram, K and Sood, AK (1994) Origin of visible photoluminescence from porous silicon as studied by Raman spectroscopy. In: Bulletin of Materials Science, 17 (5). 513-522 .

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Abstract

In this paper we discuss the different models proposed to explain the visible luminescence in porous silicon (PS). We review our recent photoluminescence and Raman studies on PS as a function of different preparation conditions and isochronal thermal annealing. Our results can be explained by a hybrid model which incorporates both nanostructures for quantum confinement and silicon complexes (such as SiHx, and siloxene) and defects at Si/SiO2, interfaces as luminescent centres.

Item Type:	Journal Article
Publication:	Bulletin of Materials Science
Publisher:	Indian academy of sciences
Additional Information:	Copyright of this article belongs to Indian academy of sciences.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	08 Apr 2011 09:10
Last Modified:	08 Apr 2011 09:10
URI:	http://eprints.iisc.ac.in/id/eprint/36672

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