Preparation of black Ag films via a novel thermal evaporation process and comparisons of their properties at the constant thickness and the constant Ag amount

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F24%3A43929723" target="_blank" >RIV/60461373:22340/24:43929723 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s00339-024-07328-7" target="_blank" >https://link.springer.com/article/10.1007/s00339-024-07328-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00339-024-07328-7" target="_blank" >10.1007/s00339-024-07328-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of black Ag films via a novel thermal evaporation process and comparisons of their properties at the constant thickness and the constant Ag amount

Popis výsledku v původním jazyce

Black Ag (B-Ag) films with nanoporous structures were prepared at various Ar gas pressures via thermal evaporation. The structure and properties of the films were compared systematically at a constant thickness of 1 mu m or with a constant amount of Ag atoms of approximately 1.6 x 10-2 mol m-2. The conditions for high optical absorption were also determined. X-ray diffraction (XRD) revealed that the films were polycrystalline. When the films contained a constant amount of Ag atoms, the peak intensity was independent of the Ar gas pressure. Furthermore, their crystallite sizes were not significantly smaller than those of typical films deposited under high vacuum and did not decrease with an increase in the Ar gas pressure. Notably, these features are significantly different from those reported in a previous study. The size change of the nanoparticles observed using a Field Emission Scanning Electron Microscope was consistent with the tendency determined from XRD. The B-Ag films in the present study showed particle formation characteristics similar to those for metal particle formation in the gas phase. In summary, this is the first report of B-Ag films prepared primarily using nucleation in the gas phase rather than on the substrate.

Název v anglickém jazyce

Preparation of black Ag films via a novel thermal evaporation process and comparisons of their properties at the constant thickness and the constant Ag amount

Popis výsledku anglicky

Black Ag (B-Ag) films with nanoporous structures were prepared at various Ar gas pressures via thermal evaporation. The structure and properties of the films were compared systematically at a constant thickness of 1 mu m or with a constant amount of Ag atoms of approximately 1.6 x 10-2 mol m-2. The conditions for high optical absorption were also determined. X-ray diffraction (XRD) revealed that the films were polycrystalline. When the films contained a constant amount of Ag atoms, the peak intensity was independent of the Ar gas pressure. Furthermore, their crystallite sizes were not significantly smaller than those of typical films deposited under high vacuum and did not decrease with an increase in the Ar gas pressure. Notably, these features are significantly different from those reported in a previous study. The size change of the nanoparticles observed using a Field Emission Scanning Electron Microscope was consistent with the tendency determined from XRD. The B-Ag films in the present study showed particle formation characteristics similar to those for metal particle formation in the gas phase. In summary, this is the first report of B-Ag films prepared primarily using nucleation in the gas phase rather than on the substrate.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/8F21008" target="_blank" >8F21008: Black metals decorated with surface receptors as high-potentiality materials for gas sensing</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

APPLIED PHYSICS A-MATERIALS SCIENCE &amp; PROCESSING

ISSN

0947-8396

e-ISSN

1432-0630

Svazek periodika

130

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

001157025700003

EID výsledku v databázi Scopus

2-s2.0-85187126699