Study of cluster materials obtained by selective laser photochemistry

This paper presents experimental results from the study of the characteristics of cluster materials obtained by resonance laser photochemistry. The effect of the redox reagents used in the photoprocessing on the size and shape of cluster structures of gold has been studied. The minimum size of the structures, measured by electron microscopy, is 30–50 nm. When organic acids are used as redox reagents, fractal structures formed from flat scales are synthesized. Redox reagents based on alcohols form cluster structures of fractal type consisting of spherical clusters. Fiz. Tverd. Tela (St. Petersburg) 40, 2236–2238 (December 1998)