Morphological and structural evolution of gas-phase synthesized vanadium nanoparticle films induced by thermal treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00572148" target="_blank" >RIV/68378271:_____/23:00572148 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/23:10468112 RIV/49777513:23520/23:43968301

Výsledek na webu

<a href="https://doi.org/10.1016/j.matchemphys.2023.127587" target="_blank" >https://doi.org/10.1016/j.matchemphys.2023.127587</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchemphys.2023.127587" target="_blank" >10.1016/j.matchemphys.2023.127587</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Morphological and structural evolution of gas-phase synthesized vanadium nanoparticle films induced by thermal treatment

Popis výsledku v původním jazyce

Temperature-driven genesis of morphology and structure of vanadium nanoparticle films fabricated by magnetron-based gas aggregation sources has been investigated. Three temperature regions were identified. Above 200 °C, the vanadium nanoparticles undergo rapid oxidation, which is accompanied by an abrupt change in their mass, crystallinity, morphology, and optical properties (absorbance, photoluminescence). According to XRD, an orthorhombic V2O5 phase becomes the only detectable crystalline phase in the films in this temperature range. Furthermore, the individual nanoparticles start to coalesce, rapidly forming rod-like structures. The size of such formed structures, as well as the size of crystallites, rapidly increases with the temperature. This lowers the specific surface area of the coatings and causes a shift in the optical band gap from 2.68 eV to 2.48 eV.n

Název v anglickém jazyce

Morphological and structural evolution of gas-phase synthesized vanadium nanoparticle films induced by thermal treatment

Popis výsledku anglicky

Temperature-driven genesis of morphology and structure of vanadium nanoparticle films fabricated by magnetron-based gas aggregation sources has been investigated. Three temperature regions were identified. Above 200 °C, the vanadium nanoparticles undergo rapid oxidation, which is accompanied by an abrupt change in their mass, crystallinity, morphology, and optical properties (absorbance, photoluminescence). According to XRD, an orthorhombic V2O5 phase becomes the only detectable crystalline phase in the films in this temperature range. Furthermore, the individual nanoparticles start to coalesce, rapidly forming rod-like structures. The size of such formed structures, as well as the size of crystallites, rapidly increases with the temperature. This lowers the specific surface area of the coatings and causes a shift in the optical band gap from 2.68 eV to 2.48 eV.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GA22-16667S" target="_blank" >GA22-16667S: Syntéza nanomateriálů na bázi oxidů kovů pro povrchem zesílenou Ramanovu spektroskopii pomocí plazmových plynně agregačních zdrojů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Materials Chemistry and Physics

ISSN

0254-0584

e-ISSN

1879-3312

Svazek periodika

301

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

127587

Kód UT WoS článku

000972629600001

EID výsledku v databázi Scopus

2-s2.0-85150858662