ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

UV-induced reduction of Ag+ by diazene sulphonates: new method of metallisation of surfaces

Eva Baranovicova, Andrej Stasko, and Oskar Nuyken

Biomedical Centre BioMed, Division of Neuroscience, Jessenius Faculty of Medicine, Comenius University, Malá Hora 4, 036 01 Martin, Slovakia

E-mail: oskar.nuyken@mytum.de

Abstract: The metallisation of surfaces would be technologically very simple if it were possible to use the properties of the substances that decompose upon UV irradiation and produce species with a strong redox potential. In this work, diazene sulphonates are presented as possible reducing agents for Ag⁺ in aqueous solutions and in thin solid layers. The photo-formation of Ag_n^m+ clusters in the presence of diazene sulphonates in solutions was investigated via UV-VIS spectroscopy. Significant differences were observed in the electrical properties of surfaces after photo reduction; these occurred without any additional reducing agent.

Keywords: diazene sulphonate – polymer – reduction – silver – metallisation

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2016-0077

Chemical Papers 70 (10) 1425–1430 (2016)