New types of fluorescent platinum nanoclusters (λ max. = 570 nm) have been synthesized using glutathione for ligand etching. These nanoclusters are mainly in the oxidation state Pt I (90%) exhibiting an intense fluorescence signal (QY∼17%) in the yellow region and lead to the formation of blue-emitting species for a long etching time process.
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Guével et al. (2012) studied this question.
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