This work was supported by the National Basic Research Program of China (No.2010CB923300), the National Natural Science Foundation of China (No.91127042 and No.21173205), the Chinese Academy of Sciences (No.XDB01020000), the FR- FCUC (No.WK2340000012), the USTC-NSRL Joint Funds (No.KY2340000021), and the National Under- graduate Innovative Training Program of Ministry of Education (No.201210358064).
We investigate the fluorescence quenching of Rhodamine 6G (R6G), a well known laser dye with a high fluorescence quantum yield, by as-synthesized graphene oxide (GO) in aqueous solution, which is found to be rathe...