Silver vapor supersonic jets: expansion dynamics, cluster formation, and film deposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00573862" target="_blank" >RIV/68378271:_____/23:00573862 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0344221" target="_blank" >https://hdl.handle.net/11104/0344221</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma16134876" target="_blank" >10.3390/ma16134876</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Silver vapor supersonic jets: expansion dynamics, cluster formation, and film deposition

Popis výsledku v původním jazyce

Supersonic jets of metal vapors with carrier gas are promising for producing nanostructured metal films at relatively low source temperatures and high deposition rates.Effects of the carrier gas on the jet composition and expansion dynamics,as well as on film properties,remain virtually unexplored.In this work,the free-jet expansion of a mixture of silver vapor with helium in a rarefied regime at an initial temperature of 1373 K is investigated through mass spectrometry and direct-simulation Monte Carlo methods.Introducing the carrier gas into the source is found to result in a transition from a collisionless to a collision-dominated expansion regime and dramatic changes in the Ag jet,which becomes denser,faster,and more forward-directed.The changes are shown to be favorable for the formation of small Ag clusters and film deposition.At a fairly high helium flow,silver Ag2 dimers are observed in the jet,both in the experiment and the simulations,with a mole fraction reaching 0.1%.

Název v anglickém jazyce

Silver vapor supersonic jets: expansion dynamics, cluster formation, and film deposition

Popis výsledku anglicky

Supersonic jets of metal vapors with carrier gas are promising for producing nanostructured metal films at relatively low source temperatures and high deposition rates.Effects of the carrier gas on the jet composition and expansion dynamics,as well as on film properties,remain virtually unexplored.In this work,the free-jet expansion of a mixture of silver vapor with helium in a rarefied regime at an initial temperature of 1373 K is investigated through mass spectrometry and direct-simulation Monte Carlo methods.Introducing the carrier gas into the source is found to result in a transition from a collisionless to a collision-dominated expansion regime and dramatic changes in the Ag jet,which becomes denser,faster,and more forward-directed.The changes are shown to be favorable for the formation of small Ag clusters and film deposition.At a fairly high helium flow,silver Ag2 dimers are observed in the jet,both in the experiment and the simulations,with a mole fraction reaching 0.1%.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/EF15_003%2F0000445" target="_blank" >EF15_003/0000445: Pokročilá příprava funkčních materiálů: Od mono k bi- a tri-chromatické excitaci s použitím tvarovaných laserových pulsů</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

ISSN

1996-1944

e-ISSN

1996-1944

Svazek periodika

16

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

26

Strana od-do

4876

Kód UT WoS článku

001028581500001

EID výsledku v databázi Scopus

2-s2.0-85165083437