Hydrothermal Route for Cutting Graphene Sheets into Blue‐Luminescent Graphene Quantum Dots
Dengyu PanInstitute of Nanochemistry and Nanobiology Shanghai, University Shanghai, PR ChinaJingchun ZhangShanghai Applied Radiation Institute Shanghai University Shanghai 201800 (P. R. China)Zhen LiShanghai Applied Radiation Institute Shanghai University Shanghai 201800 (P. R. China)Minghong WuDengyu Pan, Institute of Nanochemistry and Nanobiology Shanghai University Shanghai 201800 (P. R. China)
2009en
ABI
Annotatsiya
Water-soluble graphene quantum dots (GQDs, ca. 10 nm in diameter) that exhibit bright blue photoluminescence (PL) are prepared by hydrothermal (chemical) cutting of oxidized graphene sheets (see figure). The mechanisms of the cutting and luminescence are discussed. This discovery of PL of GQDs may extend the range of application of graphene-based materials to optoelectronics and biological labeling.
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