Published June 2002 | Version v1
Journal article

Desorption of nanoclusters (2-40 nm) from nanodispersed metal and semiconductor layers by swift heavy ions

Description

New experimental data on the desorption of nanoclusters (2-40 nm) from nanodispersed layers of metals (Ag, Pt, In, Bi) and semiconductors (Ge, UO2, PbS) by fission fragments (FF) are reported and compared to the previously obtained data on desorption of nanoclusters of gold. It is shown that the desorption of nanoclusters from nanodispersed layers of metals and semiconductors due to electronic processes induced by swift heavy ions is a universal phenomenon. The yield of the desorbed nanoclusters depends on the cluster material and cluster size as well as on the material of the target substrate and varies within the range from ∼5 to ∼0.001 FF-1. The angular distributions of the nanoclusters do not depend on the cluster material, but only on the cluster size: the mean polar angle of desorption decreasing from 45 deg. to 23 deg. while cluster size increasing from 2 to 40 nm. The majority of the nanoclusters is desorbed in the form of molten, liquid droplets. The results are discussed

Additional details

Identifiers

PII
S0168583X02009072;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms
Journal Volume
193
Journal Issue
1-4
Journal Page Range
p. 798-803
ISSN
0168-583X
CODEN
NIMBEU

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
34004762
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
DESORPTION; FISSION FRAGMENTS; HEAVY IONS; ION BEAMS; LAYERS; SOLID CLUSTERS
Descriptors DEC
BEAMS; CHARGED PARTICLES; IONS; NUCLEAR FRAGMENTS; SORPTION

Optional Information

Copyright
Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.