Optically tunable amino-functionalized graphene quantum dots.

Tetsuka, Hiroyuki; Asahi, Ryoji; Nagoya, Akihiro; Okamoto, Kazuo; Tajima, Ichiro; Ohta, Riichiro; Okamoto, Atsuto · Adv Mater · 2012

basic_science · Level V

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Abstract

Amino-functionalized graphene quantum dots (af-GQDs) with discrete molecular weights and specific edges were self-limitedly extracted from oxidized graphene sheet. Their optical properties can be precisely controlled only by the selective and quantitative functionalization at the edge sites. The af-GQDS exhibit bright colorful fluorescence under a single-wavelength excitation.

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