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Copper cluster ions in photon-induced field ionization mass spectra

Item Type:Article
Title:Copper cluster ions in photon-induced field ionization mass spectra
Creators Name:Jentsch, T.J. and Drachsel, W. and Block, J.H.
Abstract:Photon-induced field evaporation of copper emitters yields ionic species such as Cu2+, Cu+, Cu2+, Cu3+, Cu4+, and copper oxide ions. The ions are formed during the impact of laser pulses of wavelength 337 or 600 nm, energy density in the range 0.1–1 J pulse−1 cm−2, 5-ns pulse length and 50-Hz repetition rate, and tip base temperatures between 80 and 300 K. Mass analysis was performed by time-of-flight measurements. The formation of clusters is due to a sudden temperature rise at high electric fields.
Source:International Journal of Mass Spectrometry and Ion Physics
ISSN:0168-1176
Publisher:Elsevier (The Netherlands)
Volume:38
Number:2-3
Page Range:215-222
Date:May 1981
Official Publication:https://doi.org/10.1016/0020-7381(81)80068-X

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