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Mechanism of the dissolution of As–S chalcogenide glass in n-butylamine and its influence on the structure of spin coated layers
Authors: Šlang Stanislav | Pálka Karel | Loghina Liudmila | Kovalskiy Andriy | Jain Himanshu | Vlček Miroslav
Year: 2015
Type of publication: článek v odborném periodiku
Name of source: Journal of Non-Crystalline Solids
Page from-to: 125-131
Titles:
Language Name Abstract Keywords
cze Mechanismus rozpouštění chalkogenidových skel systému As-S v n-butylaminu a jeho vliv na strukturu tenkých vrstev připravených spincoatingem Chalkogenidová skla se využívají na celou řadu praktických aplikací, zejména v IČ optice. V poslední době jsou studovány metody depozice tenkých vrstev chalkogenidových skel z roztoku. Chemický proces rozpouštění skel má zásadní vliv na vlastnosti deponovaných vrstev. Byla studována struktura skel systému As-S a jejich roztoků v n-butylaminu pomocí Ramanovské spektroskopie. Byl navržen mechanismus chemického děje rozpouštění chalkogenidových skel v n-butylaminu. chalkogenidová skla;tenké vrstvy;spin-coating
eng Mechanism of the dissolution of As–S chalcogenide glass in n-butylamine and its influence on the structure of spin coated layers Chalcogenide glass thin layers are useful to many practical applications especially for the fabrication of infrared (IR) optical elements. In comparison to the conventional vacuum deposition methods of their preparation, recently chemical methods such as spin coating are gaining attention. They involve dissolution of the source bulk glass in appropriate solvent and then depositing its thin layer. Chemical processes occurring during the glass dissolution and thin layer deposition determine the physico-chemical properties of deposited thin layers. The structure of chalcogenide bulk glasses (AsxS100-x, where 30  x  40) and their solutions in n butylamine has been studied in this work by Raman spectroscopy. From the composition and time dependence of Raman spectra of solutions the mechanism of arsenic-sulfur glass dissolution involving the reaction of aliphatic amine solvent with homopolar S-S bonds is proposed and the presence of alkyl ammonium arsenic sulfide salts in thin layers is established. chalcogenide glasses;thin film;spin-coating

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