Resculpting Carbon dots via electrochemical etching

Yang, Qingsong, Gavalas, Spyridon orcid iconORCID: 0000-0003-1399-9311, Ejsmont, Aleksander, Krysmann, Marta orcid iconORCID: 0000-0002-8036-4925, Guo, Jiangtao, Li, Li, Guo, Xuhong and Kelarakis, Antonios orcid iconORCID: 0000-0002-8112-5176 (2023) Resculpting Carbon dots via electrochemical etching. Scientific Reports .

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Substantial efforts are directed into exploring the structure-properties relationships of photoluminescent Carbon dots (C-dots). This study unravels a resculpting mechanism in C-dots that is triggered by electrochemical etching and proceeds via extensive surface oxidation and carbon-carbon breakage. The process results in the gradual shrinkage of the nanoparticles and can enhance the quantum yield by more than half order of magnitude compared to the untreated analogues.

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