Decomposition of Iron Pentacarbonyl Induced by Singly and Multiply Charged Ions and Implications for Focused Ion Beam-Induced Deposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00349560" target="_blank" >RIV/68407700:21340/19:00349560 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/19:00504551

Výsledek na webu

<a href="https://doi.org/10.1021/acs.jpcc.9b00289" target="_blank" >https://doi.org/10.1021/acs.jpcc.9b00289</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpcc.9b00289" target="_blank" >10.1021/acs.jpcc.9b00289</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Decomposition of Iron Pentacarbonyl Induced by Singly and Multiply Charged Ions and Implications for Focused Ion Beam-Induced Deposition

Popis výsledku v původním jazyce

Focused ion beams are becoming important tools in nanofabrication. The underlying physical processes in the substrate were already explored for several projectile ions. However, studies of ion interaction with precursor molecules for beam-assisted deposition are almost nonexistent. Here, we explore the interaction of various projectile ions with iron pentacarbonyl. We report fragmentation patterns of isolated gas-phase iron pentacarbonyl after interaction with He-4(+) at a collision energy of 16 keV, He-4(2+) at 16 keV, Ne-20(+) at 6 keV, Ne-20(4+) at 40 keV, Ar-40(+) at 3 keV, Ar-40(3+) at 21 keV, Kr-84(3+) at 12 keV, and Kr-84(17+) at 255 keV. These projectiles cover interaction regimes ranging from collisions dominated by nuclear stopping through collisions dominated by electronic stopping to soft resonant electron-capture interactions. We report a surprising efficiency of Ne+ in the Fe(CO)(5) decomposition. The interaction with multiply charged ions results in a higher content of parent ions and slow metastable fragmentation due to the electron-capture process. The release of CO groups during the decomposition process seems to take off a significant amount of energy. The fragmentation mechanism may be described as Fe being trapped within a CO cluster.

Název v anglickém jazyce

Decomposition of Iron Pentacarbonyl Induced by Singly and Multiply Charged Ions and Implications for Focused Ion Beam-Induced Deposition

Popis výsledku anglicky

Focused ion beams are becoming important tools in nanofabrication. The underlying physical processes in the substrate were already explored for several projectile ions. However, studies of ion interaction with precursor molecules for beam-assisted deposition are almost nonexistent. Here, we explore the interaction of various projectile ions with iron pentacarbonyl. We report fragmentation patterns of isolated gas-phase iron pentacarbonyl after interaction with He-4(+) at a collision energy of 16 keV, He-4(2+) at 16 keV, Ne-20(+) at 6 keV, Ne-20(4+) at 40 keV, Ar-40(+) at 3 keV, Ar-40(3+) at 21 keV, Kr-84(3+) at 12 keV, and Kr-84(17+) at 255 keV. These projectiles cover interaction regimes ranging from collisions dominated by nuclear stopping through collisions dominated by electronic stopping to soft resonant electron-capture interactions. We report a surprising efficiency of Ne+ in the Fe(CO)(5) decomposition. The interaction with multiply charged ions results in a higher content of parent ions and slow metastable fragmentation due to the electron-capture process. The release of CO groups during the decomposition process seems to take off a significant amount of energy. The fragmentation mechanism may be described as Fe being trapped within a CO cluster.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

1932-7455

Svazek periodika

123

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

10639-10645

Kód UT WoS článku

000466053600054

EID výsledku v databázi Scopus

2-s2.0-85064381390