Amorphous-to-crystalline transition in Te-doped Ge2Sb2Se5 glass

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F14%3A39898139" target="_blank" >RIV/00216275:25310/14:39898139 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10973-014-3910-4" target="_blank" >http://dx.doi.org/10.1007/s10973-014-3910-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-014-3910-4" target="_blank" >10.1007/s10973-014-3910-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Amorphous-to-crystalline transition in Te-doped Ge2Sb2Se5 glass

Popis výsledku v původním jazyce

Differential scanning calorimetry (DSC) was used to study crystallization in Ge2Sb2Se4.5Te0.5 glass under non-isothermal conditions. The crystallization kinetics was described in terms of the autocatalytic estak-Berggren model. An extensive discussion ofall aspects of a full-scale kinetic study for a crystallization process was undertaken. In particular, the effect of Te a dagger" Se substitution on the complexity of the crystallization process was analyzed. The addition of tellurium enhances bulk crystallization originating from volume nuclei at the expense of the surface/defects-based crystallization mechanism. Significantly higher activation energy in the case of the Te-doped material was attributed to the larger mass of the combined Se-Te chains and the larger spatial restrictions for their movement. On the other hand, the slightly lower crystallization temperature of the Te-doped glass corresponds to its higher tendency for crystallization. A supplemental X-ray diffraction study

Název v anglickém jazyce

Amorphous-to-crystalline transition in Te-doped Ge2Sb2Se5 glass

Popis výsledku anglicky

Differential scanning calorimetry (DSC) was used to study crystallization in Ge2Sb2Se4.5Te0.5 glass under non-isothermal conditions. The crystallization kinetics was described in terms of the autocatalytic estak-Berggren model. An extensive discussion ofall aspects of a full-scale kinetic study for a crystallization process was undertaken. In particular, the effect of Te a dagger" Se substitution on the complexity of the crystallization process was analyzed. The addition of tellurium enhances bulk crystallization originating from volume nuclei at the expense of the surface/defects-based crystallization mechanism. Significantly higher activation energy in the case of the Te-doped material was attributed to the larger mass of the combined Se-Te chains and the larger spatial restrictions for their movement. On the other hand, the slightly lower crystallization temperature of the Te-doped glass corresponds to its higher tendency for crystallization. A supplemental X-ray diffraction study

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP106%2F11%2F1152" target="_blank" >GAP106/11/1152: Reverzibilní krystalizace a strukturni relaxace amorfních materiálů pro záznam informace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

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Svazek periodika

117

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1073-1083

Kód UT WoS článku

000340683300009

EID výsledku v databázi Scopus

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