Abstract
The surface fluorescence of methyl orange (MO) adsorbed onto colloidal silver was investigated. It was found that the 420 nm fluorescence band of MO aqueous solution quenched sharply. While the enhancement factor of the other fluorescence band at 530 nm was up to 20, and at the same time, the band had a red shift of 30 nm. These notable phenomena are explained in the main aspects of the influence of fluorescence quenching and fluorescence enhancing by the radiationless energy transfer channel.
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