Carbon dots (CDs) have attracted great attention because of their excellent properties such as unique electronics and optical property, biocompatibility, and low toxicity. In this paper, blue luminescent CDs were prepared by thermal reduction CDs from citric acid. After thermal reduction, the increase of sp2 domains in tCDs and decrease of carboxyl group on the surface of tCDs can improve the photoluminescence of CDs. The quantum yield of the thermal-reduced CDs (tCDs) was increased 2 fold. This work may provide a �neat� and eco-friendly pathway to increase the QY of CDs.

Thermal reduction method to improve the photoluminescence of carbon dots

247th National Meeting (2014)

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