In situ investigation of amorphous silicon/silicon nitride interfaces by infrared ellipsometry

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Abstract

A detailed in situ study, by Infrared Phase Modulated Ellipsometry (IRPME), of interfaces between amorphous silicon (a-Si:H) and silicon nitride (a-SiNx) is presented. A behaviour compatible with a sharp interface is observed when a-SiNx is deposited on top of a-Si:H, the underlayer material being very weakly influenced by the deposition of the overlayer. In contrast a graded transition is observed when a-SiNx is deposited first. In the latter case, the IR measurements directly reveal a nitrogen incorporation in the first monolayers of a-Si:H together with an increase of intensity of the SiH bonds at the interface.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
EditorsJerzy Kanicki, William L. Warren, Roderick A.B. Devine, Masakiyo Matsumura
PublisherPubl by Materials Research Society
Pages425-430
Number of pages6
ISBN (Print)1558991794
Publication statusPublished - 1 Dec 1993
EventProceedings of a Symposium on Amorphous Insulating Thin Films - Boston, MA, USA
Duration: 1 Dec 19924 Dec 1992

Publication series

NameMaterials Research Society Symposium Proceedings
Volume284
ISSN (Print)0272-9172

Conference

ConferenceProceedings of a Symposium on Amorphous Insulating Thin Films
CityBoston, MA, USA
Period1/12/924/12/92

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