Au ultrafine particles-polyethylene thin films and C60-polyethylene th
in films have been prepared in an ionized-cluster-beam time-of-flight
mass spectrometer system and analysed by transmission electron microsc
opy. We found that the small Au clusters with a size of 2.0-5.0 nm are
suspended randomly in the polyethylene thin films, and the C60-polyet
hylene thin films are f.c.c. structures with a lattice constant a of 1
.454 nm.