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Investigation of interdiffusion in Sb/As2S3 nano-layered structures by high-resolution X-ray photoelectron spectroscopy

Investigation of interdiffusion in Sb/As2S3 nano-layered structures by high-resolution X-ray photoelectron spectroscopy

Authors :
A. C. Miller
Viktor Takáts
Andriy Kovalskiy
Himanshu Jain
Sándor Kökényesi
Source :
Thin Solid Films. 519:3437-3442
Publication Year :
2011
Publisher :
Elsevier BV, 2011.

Abstract

The photo-stimulated interdiffusion within chalcogenide based nano-layered structures (NLS) produces large changes in properties, which have potential application in optical pattern recording. The mechanism of these changes is investigated for two NLS consisting of 100 alternate layers of antimony and As 2 S 3 , but of different relative thicknesses, by high-resolution X-ray photoelectron spectroscopy. The results suggest the formation of Sb–S bonds at the expense of As–S bonds, with a consequent increase in the refractive index but minimal change in thickness. The role of oxygen in photoinduced transformations, especially in the top layers, is characterized and discussed.

Details

ISSN :
00406090
Volume :
519
Database :
OpenAIRE
Journal :
Thin Solid Films
Accession number :
edsair.doi.dedup.....926a10e62755dda53fc90682d37d6dfa
Full Text :
https://doi.org/10.1016/j.tsf.2011.01.263