Phosphorus cluster production by laser ablation |
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| Authors: | A.V. Bulgakov O.F. Bobrenok I. Ozerov W. Marine S. Giorgio A. Lassesson E.E.B. Campbell |
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| Affiliation: | (1) Institute of Thermophysics SB RAS, 1 Lavrentyev Ave., 630090 Novosibirsk, Russia;(2) CRMC-N, UPR 7251 CNRS, Université de la Méditerranée, Faculté des Sciences de Luminy, Case 901, 13288 Marseille Cedex 9, France;(3) School of Physics and Engineering Physics, Göteberg University and Chalmers University of Technology, 41296 Göteberg, Sweden |
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| Abstract: | Neutral and charged phosphorus clusters of a wide size range have been produced by pulsed laser ablation (PLA) in vacuum at 532, 337, and 193 nm ablating wavelengths and investigated by time-of-flight mass spectrometry. The neutral Pn clusters are even-numbered with local abundance maxima at n=10 and 14, while the cationic and anionic clusters are preferentially odd-numbered with P7+, P21+, and P17- being the most abundant ions. The dominance of the magic clusters is more pronounced at 337-nm ablation that is explained by efficient direct ejection of their building blocks under these conditions. Nanocrystalline phosphorus films have been produced by PLA in ambient helium gas. PACS 52.38.MF; 61.46.+w; 79.20.Ds; 81.07.B; 81.16.Mk |
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