Native crystal growth in 60 nm Sb2S3 amorphous film: A joint microscopy-calorimetry study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F25%3A39923098" target="_blank" >RIV/00216275:25310/25:39923098 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0283530" target="_blank" >https://doi.org/10.1063/5.0283530</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0283530" target="_blank" >10.1063/5.0283530</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Native crystal growth in 60 nm Sb2S3 amorphous film: A joint microscopy-calorimetry study

Popis výsledku v původním jazyce

Joint direct microscopy-calorimetry measurements of crystal growth were performed for a 60 nm amorphous Sb2S3 film deposited either on a Kapton foil or on a soda-lime glass. Calorimetric crystallization proceeded in two steps, originating either from mechanical and stress-induced defects (230-275 degrees C) or from homogeneously formed nuclei (255-310 degrees C); both processes exhibited an identical activation energy of 200 kJ mol(-1). At temperatures &lt;230 degrees C, a Sb2O3 crystalline phase formed along the rhombohedral Sb2S3 structure. The normal growth model with the activation energy of similar to 250 kJ mol(-1) was used to describe the microscopic crystal growth rate data, and the viscosity-diffusivity decoupling was characterized by Ediger&apos;s parameter xi varying between 0.40 and 0.55. The crystal growth rate was slightly higher in the film deposited on the glass substrate, with the compressive stress introduced at higher T having only a small effect. Meanwhile, the deposition on the glass substrate led to a significantly higher (especially below the glass transition temperature) nucleation rate, which underlines the key aspect of the crystallization process in very thin chalcogenide films: the formation of nuclei due to the internal stresses arising from the difference of the film/substrate thermal expansion coefficients.

Název v anglickém jazyce

Native crystal growth in 60 nm Sb2S3 amorphous film: A joint microscopy-calorimetry study

Popis výsledku anglicky

Joint direct microscopy-calorimetry measurements of crystal growth were performed for a 60 nm amorphous Sb2S3 film deposited either on a Kapton foil or on a soda-lime glass. Calorimetric crystallization proceeded in two steps, originating either from mechanical and stress-induced defects (230-275 degrees C) or from homogeneously formed nuclei (255-310 degrees C); both processes exhibited an identical activation energy of 200 kJ mol(-1). At temperatures &lt;230 degrees C, a Sb2O3 crystalline phase formed along the rhombohedral Sb2S3 structure. The normal growth model with the activation energy of similar to 250 kJ mol(-1) was used to describe the microscopic crystal growth rate data, and the viscosity-diffusivity decoupling was characterized by Ediger&apos;s parameter xi varying between 0.40 and 0.55. The crystal growth rate was slightly higher in the film deposited on the glass substrate, with the compressive stress introduced at higher T having only a small effect. Meanwhile, the deposition on the glass substrate led to a significantly higher (especially below the glass transition temperature) nucleation rate, which underlines the key aspect of the crystallization process in very thin chalcogenide films: the formation of nuclei due to the internal stresses arising from the difference of the film/substrate thermal expansion coefficients.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10400 - Chemical sciences

Projekt

<a href="/cs/project/GA25-17110S" target="_blank" >GA25-17110S: Fázové transformace v ultra-tenkých chalkogenidových vrstvách: Od in-situ kalorimetrických měření k pokročilému modelování jejich kinetiky.</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Chemical Physics

ISSN

0021-9606

e-ISSN

1089-7690

Svazek periodika

163

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

104502

Kód UT WoS článku

001568235600013

EID výsledku v databázi Scopus

2-s2.0-105015560345