This article is cited in 11 papers

Communications

Reduction of colloidal Ag₂S to binary Ag_2–XS/Ag nanoparticles under UV and visible irradiation

S. V. Rempel^ab, Yu. V. Kuznetsova^a, A. A. Rempel<sup>a

a</sup> Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation
^b Department of Chemistry, Ural Federal University, Ekaterinburg, Russian Federation

Abstract: The formation of Ag_{2 – x}S /Ag binary nanoparticles in an aqueous colloid dispersion of Ag₂S under irradiation leads to an asymmetry in the optical absorption spectrum as a consequence of the Fano resonance due to the interaction between the excitons of semiconductor nanoparticles and the plasmons of metallic nanoparticles. Aqueous dispersions from different stability regions containing Ag₂S nanoparticles have been studied. Sunlight, UV and laser irradiation leads to the partial reduction of silver in the dispersion and the formation of the Ag_{2 – x}S /Ag particles depending on the initial state of the dispersion and the conditions of irradiation.

Language: English

DOI: 10.1016/j.mencom.2018.01.033

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