TY - JOUR AU - 한태희 DA - 2015/09 PY - 2015 UR - https://www.nature.com/articles/srep14163 UR - http://hdl.handle.net/20.500.11754/27463 AB - Graphene oxide (GO), which is an oxidized form of graphene, has a mixed structure consisting of graphitic crystallites of sp(2) hybridized carbon and amorphous regions. In this work, we present a straightforward route for preparing graphene-based quantum dots (GQDs) by extraction of the crystallites from the amorphous matrix of the GO sheets. GQDs with controlled functionality are readily prepared by varying the reaction temperature, which results in precise tunability of their optical properties. Here, it was concluded that the tunable optical properties of GQDs are a result of the different fraction of chemical functionalities present. The synthesis approach presented in this paper provides an efficient strategy for achieving large-scale production and long-time optical stability of the GQDs, and the hybrid assembly of GQD and polymer has potential applications as photoluminescent fibers or films. PB - NATURE PUBLISHING GROUP KW - GENERALIZED GRADIENT APPROXIMATION KW - CARBON NANOTUBES KW - FACILE SYNTHESIS KW - HYDROGEN-PEROXIDE KW - DEEP-ULTRAVIOLET KW - OXIDE KW - GRAPHITE KW - PHOTOLUMINESCENCE KW - FABRICATION KW - MOLECULES TI - Large Scale Synthesis and Light Emitting Fibers of Tailor-Made Graphene Quantum Dots VL - 5 DO - 10.1038/srep14163 T2 - SCIENTIFIC REPORTS ER -