Ag diffusion in amorphous As50Se50 films studied by XPS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F09%3A00008354" target="_blank" >RIV/00216275:25310/09:00008354 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Ag diffusion in amorphous As50Se50 films studied by XPS

Popis výsledku v původním jazyce

X-ray photoelectron spectroscopy and depth profile analysis were used to investigate the X-ray-induced silver photodiffusion into an amorphous As50Se50 thin film. It was found that during the induction period this interlayer is enriched in silver and theexisting As-Se-Ag intermediate species are transformed to Ag-Se-Ag that form the metal source for the effective silver photodiffusion. With further irradiation photodiffusion proceeds by the disruption of Ag-Se bonds and the recombination of As atoms with Se to stable As-Se units. Ultimately, silver concentration reaches a plateau when the diffusion stops. A separated Ag2Se phase on the film's surface is identified at this stage. Depth profile analysis shows that silver has been homogenously diffused into the chalcogenide matrix and the Ag2Se phase exists only at the top surface layers probably in the form of quasi-crystalline clusters that prohibit further Ag diffusion.

Název v anglickém jazyce

Ag diffusion in amorphous As50Se50 films studied by XPS

Popis výsledku anglicky

X-ray photoelectron spectroscopy and depth profile analysis were used to investigate the X-ray-induced silver photodiffusion into an amorphous As50Se50 thin film. It was found that during the induction period this interlayer is enriched in silver and theexisting As-Se-Ag intermediate species are transformed to Ag-Se-Ag that form the metal source for the effective silver photodiffusion. With further irradiation photodiffusion proceeds by the disruption of Ag-Se bonds and the recombination of As atoms with Se to stable As-Se units. Ultimately, silver concentration reaches a plateau when the diffusion stops. A separated Ag2Se phase on the film's surface is identified at this stage. Depth profile analysis shows that silver has been homogenously diffused into the chalcogenide matrix and the Ag2Se phase exists only at the top surface layers probably in the form of quasi-crystalline clusters that prohibit further Ag diffusion.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/LC523" target="_blank" >LC523: Perspektivní anorganické materiály</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Non-Crystalline Solids

ISSN

0022-3093

e-ISSN

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Svazek periodika

355

Číslo periodika v rámci svazku

37-42

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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