Submicrometer patterning of the TiO2-rutile single crystal surface by Pt wa
s accomplished by means of photo-catalytic reduction of PtCl42- from aqueou
s solutions of H2PtCl6. The patterns of Pt were fabricated along focal poin
t traces of a 380 nm wavelength excitation laser beam. Single particles of
Pt as small as 100 nm can be grown by such techniques. (C) 1999 Elsevier Sc
ience S.A. All rights reserved.