Fluorescent Few-Atom Clusters of Silver Formed in Organic Solvents on Polymeric Supports

摘要

Few-atom silver clusters are fluorophores with a set of attractive properties including sub-nanometerudsize, high quantum yield and large Stokes shift. Sharing high photostability with semiconductor quantumuddots but being of much smaller size, lacking blinking and with expected lack of toxicity, they are especiallyudattractive for biological imaging, down to single molecules. No less promising are their applications inudchemical sensing and biosensing as well as for molecular optic and electronic devices on a single molecularudlevel. We demonstrate that it is not a unique property of water that can provide the formation and stabilityudof silver clusters. They can be produced on photoreduction in different organic solvents using the same polymericudtemplate. Unique photophysical properties of these clusters share both similarities and differencesudto that of organic dyes.When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35122