Photoluminescence of porous silicon prepared from crystallized a-Si:H films

Danesh, P; Bedikjan, L; Savatinova, I; Liarokapis, E

dc.contributor.author	Danesh, P	en
dc.contributor.author	Bedikjan, L	en
dc.contributor.author	Savatinova, I	en
dc.contributor.author	Liarokapis, E	en
dc.date.accessioned	2014-03-01T01:14:03Z
dc.date.available	2014-03-01T01:14:03Z
dc.date.issued	1998	en
dc.identifier.issn	0022-3093	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12835
dc.subject	78.30 Gt	en
dc.subject	78.55	en
dc.subject	Amorphous silicon	en
dc.subject	Crystallinity	en
dc.subject	Porous silicon	en
dc.subject	Thin films	en
dc.subject.classification	Materials Science, Ceramics	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Amorphous films	en
dc.subject.other	Amorphous silicon	en
dc.subject.other	Annealing	en
dc.subject.other	Crystal structure	en
dc.subject.other	Crystallization	en
dc.subject.other	Etching	en
dc.subject.other	Hydrogenation	en
dc.subject.other	Photoluminescence	en
dc.subject.other	Raman spectroscopy	en
dc.subject.other	Semiconducting films	en
dc.subject.other	Semiconducting silicon	en
dc.subject.other	Thin films	en
dc.subject.other	Micro Raman spectroscopy	en
dc.subject.other	Porous silicon	en
dc.title	Photoluminescence of porous silicon prepared from crystallized a-Si:H films	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0022-3093(98)00247-6	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0022-3093(98)00247-6	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	Preparation of porous silicon films from undoped hydrogenated amorphous silicon is demonstrated. Light emission was observed only in the cases when the precursor material was crystallized and chemically etched. The amount of crystallinity of the films was varied by annealing at 850 degrees C for different times ranging from 1 to 120 min. The crystallinity of the annealed and etched samples was measured by micro-Raman spectroscopy. The photoluminescence spectra were measured at room temperature, using a mercury lamp as an excitation source. The correlation between the amount of crystallinity and the photoluminescence features has been studied. It has been established that neither the crystallinity nor the photoluminescence features vary with annealing durations between 26 and 120 min. (C) 1998 Elsevier Science B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Non-Crystalline Solids	en
dc.identifier.doi	10.1016/S0022-3093(98)00247-6	en
dc.identifier.isi	ISI:000074599000079	en
dc.identifier.volume	227-230	en
dc.identifier.issue	PART 2	en
dc.identifier.spage	1049	en
dc.identifier.epage	1052	en