Generation of CdS clusters using laser ablation: the role of wavelength and fluence

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 27 Nov 2008 English Publisher:Springer Science and Business Media LLCJournal:Applied Physics A, volume 95, pages 681-687 (issn: 0947-8396, eissn: 1432-0630,

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Authors: Alvarez-Ruiz, J.; López-Arias, M.; de Nalda, R. ; Martín Muñoz, Margarita; Arregui, Andrés; Bañares, Luis;

doi: 10.1007/s00339-008-4967-3

handle: 10261/258733 , 10261/258735

Generation of CdS clusters using laser ablation: the role of wavelength and fluence

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Abstract

The generation of cationic CdS clusters by laser ablation was studied using a reflectron TOFMS. The analysis was carried out in the visible and the UV and at a broad range of laser fluences. The mass spectra revealed the presence of stoichiometric CdnSn (n=1-34) and CdnSn+m (m= -1,1,2,3) clusters. Cd34S34 was also detected, supporting previous work which identified n=13 and 34 as ultrastable magic numbers for chalcogenide clusters. We observed a significant decrease in the heavy to light mass ratio with UV irradiation, which suggests different mechanisms across the spectrum.

Trabajo presentado en el IX International Conference on Laser Ablation, celebrado en Tenerife (España) el 24 de septiembre de 2007.

Related Organizations

Spanish National Research Council
Spain
Institute of Physical Chemistry "Rocasolano"
Spain
Complutense University of Madrid
Spain

Keywords

52.38.Mf, 36.40.-c, 81.07.Ta

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