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Growth of Densely Packed Gold Nanoparticles on Graphite Using Molecular Templates
Author(s) -
Guo Q.,
Fallon P.,
Yin J.,
Palmer R.E.,
Bampos N.,
Sanders J.K.M.
Publication year - 2003
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200304938
Subject(s) - materials science , graphite , trimer , highly oriented pyrolytic graphite , pyrolytic carbon , colloidal gold , nanotechnology , chemical engineering , surface modification , nanoparticle , molecule , substrate (aquarium) , metal , layer (electronics) , composite material , metallurgy , dimer , organic chemistry , pyrolysis , chemistry , oceanography , geology , engineering
The growth kinetics of deposited gold atoms on the surface of highly oriented pyrolytic graphite can be controlled by modification of the graphite surface by a single layer of zinc porphyrin trimer molecules. Densely packed nanocluster films (see Figure (200 nm × 200 nm)) result, rather than the open, fractal structure produced on the bare graphite surface. No permanent defects are produced in the substrate surface and the molecules can be removed following metal deposition.