Kai-li Fan, Zhen-kun Guo, Zhi-gang Geng, Jing Ge, Shen-long Jiang, Jia-hua Hu, Qun Zhang. How Graphene Oxide Quenches Fluorescence of Rhodamine 6G[J]. Chinese Journal of Chemical Physics , 2013, 26(3): 252-258. doi: 10.1063/1674-0068/26/03/252-258
Citation: Kai-li Fan, Zhen-kun Guo, Zhi-gang Geng, Jing Ge, Shen-long Jiang, Jia-hua Hu, Qun Zhang. How Graphene Oxide Quenches Fluorescence of Rhodamine 6G[J]. Chinese Journal of Chemical Physics , 2013, 26(3): 252-258. doi: 10.1063/1674-0068/26/03/252-258

How Graphene Oxide Quenches Fluorescence of Rhodamine 6G

doi: 10.1063/1674-0068/26/03/252-258
Funds:  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 FRFCUC (No.WK2340000012), the USTC-NSRL Joint Funds (No.KY2340000021), and the National Undergraduate Innovative Training Program of Ministry of Education (No.201210358064).
  • Received Date: 2013-03-18
  • 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 rather efficient. By means of steady-state and time-resolved fluorescence spectroscopy combined with detailed analysis about the linear absorption variation for this R6G-GO system, the pertinent quenching mechanism has been elucidated to be a combination of dynamic and static quenching. Possible ground-state complexes between R6G and GO during the static quenching have also been suggested. Furthermore, the direction of photoinduced electron transfer between R6G and GO has been discussed.
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How Graphene Oxide Quenches Fluorescence of Rhodamine 6G

doi: 10.1063/1674-0068/26/03/252-258
Funds:  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 FRFCUC (No.WK2340000012), the USTC-NSRL Joint Funds (No.KY2340000021), and the National Undergraduate Innovative Training Program of Ministry of Education (No.201210358064).

Abstract: 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 rather efficient. By means of steady-state and time-resolved fluorescence spectroscopy combined with detailed analysis about the linear absorption variation for this R6G-GO system, the pertinent quenching mechanism has been elucidated to be a combination of dynamic and static quenching. Possible ground-state complexes between R6G and GO during the static quenching have also been suggested. Furthermore, the direction of photoinduced electron transfer between R6G and GO has been discussed.

Kai-li Fan, Zhen-kun Guo, Zhi-gang Geng, Jing Ge, Shen-long Jiang, Jia-hua Hu, Qun Zhang. How Graphene Oxide Quenches Fluorescence of Rhodamine 6G[J]. Chinese Journal of Chemical Physics , 2013, 26(3): 252-258. doi: 10.1063/1674-0068/26/03/252-258
Citation: Kai-li Fan, Zhen-kun Guo, Zhi-gang Geng, Jing Ge, Shen-long Jiang, Jia-hua Hu, Qun Zhang. How Graphene Oxide Quenches Fluorescence of Rhodamine 6G[J]. Chinese Journal of Chemical Physics , 2013, 26(3): 252-258. doi: 10.1063/1674-0068/26/03/252-258

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