Size distribution of Bi clusters deposits on amorphous carbon substrates

Bismuth clusters are produced by the inert gas condensation technique. The cluster beam is analysed by time of flight mass spectrometry and is simultaneously deposited on an amorphous carbon film. We compare two kinds of deposition: molecular beam and free clusters deposition (18 A mean size). Cluster deposition exhibits a larger mean particle size on the support. The two kinds of deposition may be correlated with the Schmeisser’s law.