title: Large Scale Synthesis and Light Emitting Fibers of Tailor-Made Graphene Quantum Dots.
abstract: 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.
authors.affiliation: Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea.
authors.forename: Hun
authors.initials: H
authors.lastname: Park
authors.affiliation: Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea.
authors.forename: Sung Hyun
authors.initials: SH
authors.lastname: Noh
authors.affiliation: Department of Organic Material Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
authors.forename: Ji Hye
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Chemistry, Imperial College London, London, SW7 2AZ, United Kingdom.
authors.forename: Won Jun
authors.initials: WJ
authors.lastname: Lee
authors.affiliation: Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea.
authors.forename: Jae Yun
authors.initials: JY
authors.lastname: Jaung
authors.affiliation: Department of Organic Material Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
authors.forename: Seung Geol
authors.initials: SG
authors.lastname: Lee
authors.affiliation: Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea.
authors.forename: Tae Hee
authors.initials: TH
authors.lastname: Han