Kinetic-energy and mass analysis of carbon cluster ions in pulsed-laser-stimulated field evaporation

1988 ◽  
Vol 38 (12) ◽  
pp. 8490-8493 ◽  
Author(s):  
Jiang Liu ◽  
Tien T. Tsong
2013 ◽  
Vol 543 ◽  
pp. 30-34 ◽  
Author(s):  
Aljona Ramonova ◽  
Tengiz Butkhuzi ◽  
Viktorija Abaeva ◽  
I.V. Tvauri ◽  
Soslan Khubezhov ◽  
...  

Laser-induced fragmentation and desorption of fragments of PTCDA films vacuum-deposited on GaAs (100) substrate has been studied by time-of-flight (TOF) mass spectroscopy. The main effect caused by pulsed laser light irradiation (pulse duration: 10 ns, photon energy: 2.34 eV and laser fluence ranging from 0.5 to 7 mJ/cm2) is PTCDA molecular fragmentation and desorption of the fragments formed, whereas no desorption of intact PTCDA molecule was detected. Fragments formed are perylene core C20H8, its half C10H4, carbon dioxide, carbon monoxide and atomic oxygen. All desorbing fragments have essentially different kinetic energy. The mechanism of photoinduced molecular fragmentation and desorption is discussed.


1994 ◽  
Vol 98 (7) ◽  
pp. 1810-1818 ◽  
Author(s):  
Joanna M. Hunter ◽  
James L. Fye ◽  
Eric J. Roskamp ◽  
Martin F. Jarrold
Keyword(s):  

1988 ◽  
Vol 84 (1-2) ◽  
pp. 121-133 ◽  
Author(s):  
G. Seifert ◽  
S. Becker ◽  
H.-J. Dietze

1989 ◽  
Vol 12 (1-4) ◽  
pp. 567-570 ◽  
Author(s):  
D. C. Parent ◽  
S. W. McElvany

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