This study reveals a resculpting mechanism in photoluminescent Carbon dots (C-dots) triggered by electrochemical etching, which involves extensive surface oxidation and carbon-carbon breakage. The process leads to gradual shrinkage of the nanoparticles and can significantly enhance the quantum yield compared to untreated samples.
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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