scholarly journals Excitation and quenching mechanisms in the near-UV photodissociation of CH3Br and CH3Cl adsorbed on D2O or CH3OH on Cu(110)

2015 ◽  
Vol 17 (14) ◽  
pp. 9173-9185 ◽  
Author(s):  
E. T. Jensen
Keyword(s):  
Mass Spectrometry ◽  
Thin Films ◽  
Time Of Flight ◽  
Photochemical Processes ◽  
Flight Mass Spectrometry ◽  
Quenching Mechanisms ◽  
193 Nm

Photochemical processes for CH3X (X = Cl, Br, I) adsorbed on top of thin films of D2O or CH3OH on a Cu(110) substrate is studied by time-of-flight mass spectrometry for a range of UV wavelengths (351–193 nm).

scholarly journals Amorphous Ge-Bi-Se Thin Films: A Mass Spectrometric Study

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ravi Mawale ◽  
Govinda Mandal ◽  
Marek Bouška ◽  
Jan Gutwirth ◽  
Pankaj Lochan Bora ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Thin Films ◽  
Laser Ablation ◽  
Density Functional ◽  
Structural Information ◽  
Time Of Flight ◽  
Mass Spectrometry Analysis ◽  
Individual Species ◽  
Ablation Time ◽  
Flight Mass Spectrometry

AbstractThe Ge-Bi-Se thin films of varied compositions (Ge content 0–32.1 at. %, Bi content 0–45.7 at. %, Se content 54.3–67.9 at. %) have been prepared by rf magnetron (co)-sputtering technique. The present study was undertaken in order to investigate the clusters generated during the interaction of laser pulses with Ge-Bi-Se thin films using laser ablation time-of-flight mass spectrometry. The stoichiometry of the clusters was determined in order to understand the individual species present in the plasma plume. Laser ablation of Ge-Bi-Se thin films accompanied by ionization produces about 20 positively and/or negatively charged unary, binary and ternary (Gex+, Biy+, Sez+/−, GexSez+/−, BiySez+/− and GexBiySez−) clusters. Furthermore, we performed the laser ablation experiments of Ge:Bi:Se elemental mixtures and the results were compared with laser ablation time-of-flight mass spectrometry analysis of thin films. Moreover, to understand the geometry of the generated clusters, we calculated structures of some selected binary and ternary clusters using density functional theory. The generated clusters and their calculated possible geometries can give important structural information, as well as help to understand the processes present in the plasma processes exploited for thin films deposition.

Laser desorption ionisation quadrupole ion trap time-of-flight mass spectrometry of titanium-carbon thin films

2013 ◽  
Vol 27 (11) ◽  
pp. 1196-1202 ◽  
Author(s):  
Filippo Amato ◽  
Nagender Reddy Panyala ◽  
Petr Vašina ◽  
Pavel Souček ◽  
Josef Havel
Keyword(s):  
Mass Spectrometry ◽  
Thin Films ◽  
Ion Trap ◽  
Time Of Flight ◽  
Laser Desorption ◽  
Quadrupole Ion Trap ◽  
Flight Mass Spectrometry ◽  
Carbon Thin Films

Structural analysis of amorphous thin films by time of flight mass spectrometry

1996 ◽  
Vol 198-200 ◽  
pp. 33-35 ◽  
Author(s):  
Seiji Tsuboi ◽  
Mitsutaka Matsuse ◽  
Masashi Kawasaki ◽  
Akihisa Matsuda ◽  
Hideomi Koinuma
Keyword(s):  
Mass Spectrometry ◽  
Thin Films ◽  
Structural Analysis ◽  
Time Of Flight ◽  
Amorphous Thin Films ◽  
Flight Mass Spectrometry

Laser desorption time-of-flight mass spectrometry of atomic switch memory Ge2Sb2Te5bulk materials and its thin films

2014 ◽  
Vol 28 (7) ◽  
pp. 699-704 ◽  
Author(s):  
Jan Houška ◽  
Eladia Maria Peña-Méndez ◽  
Jakub Kolář ◽  
Jan Přikryl ◽  
Martin Pavlišta ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Thin Films ◽  
Time Of Flight ◽  
Laser Desorption ◽  
Flight Mass Spectrometry ◽  
Desorption Time ◽  
Switch Memory ◽  
Atomic Switch
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