Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 341, Issue 1-2, Pages 208-210Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0925-8388(02)00078-6
Keywords
clusters; thin films; nanostructures; chemical synthesis; light absorption
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Silver nanoparticles and clusters were produced within the conventional sol-gel process with tetraethylorthosilicate hydrolysis. The appearance of the reduced silver species was recorded by optical absorption spectroscopy as the plasmon resonances in the range of lambda < 370 nm, and the other absorption features (lambda < 370 nm) were prescribed to small silver clusters. The tuning of the preparation method can provide the participation of low-size pores in the sol-gel silica films like those in zeolites with regular cavities whose sizes are compatible with sizes of few-atomic clusters. (C) 2002 Elsevier Science B.V. All rights reserved.
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