The origin of fluorescence from graphene oxide

• Main Authors: Gurzadyan, Gagik G., Shang, Jingzhi, Ma, Lin, Li, Jiewei, Ai, Wei, Yu, Ting
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Materials::Testing of materials
• Online Access: https://hdl.handle.net/10356/79831; http://hdl.handle.net/10220/9328
• Institution: Nanyang Technological University

Time-resolved fluorescence measurements of graphene oxide in water show multiexponential decay kinetics ranging from 1 ps to 2 ns. Electron-hole recombination from the bottom of the conduction band and nearby localized states to wide-range valance band is suggested as origin of the fluorescence. Exc...