| 氧化石墨烯如何猝灭罗丹明6G的荧光 |
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| 引用本文： | 樊凯利,郭镇坤,耿志刚,葛晶,江申龙,胡嘉华,张群.氧化石墨烯如何猝灭罗丹明6G的荧光[J].化学物理学报,2013,26(3):252-258. |
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| 作者姓名： | 樊凯利 郭镇坤 耿志刚 葛晶 江申龙 胡嘉华 张群 |
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| 作者单位： | 中国科学技术大学化学物理系，合肥230026;中国科学技术大学化学物理系，合肥230026;中国科学技术大学合肥微尺度物质科学国家实验室，合肥230026;中国科学技术大学化学物理系，合肥230026;中国科学技术大学合肥微尺度物质科学国家实验室，合肥230026;中国科学技术大学化学物理系，合肥230026;中国科学技术大学化学物理系，合肥230026；中国科学技术大学合肥微尺度物质科学国家实验室，合肥230026 |
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| 摘 要： | 考察了水相溶液中氧化石墨烯对罗丹明6G的高效荧光猝灭．借助稳态及时间分辨荧光光谱测量，结合对该二元体系线性吸收谱变化的细致分析，澄清了相关荧光猝灭机理，即动态猝灭与静态猝灭的联合猝灭机制．提出在静态猝灭过程中罗丹明6G与氧化石墨烯所形成的可能的基态复合物，并进一步讨论了二者之间的光致电子转移过程．
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| 关 键 词： | 氧化石墨烯，罗丹明6G，荧光猝灭，相互作用，机理 |
| 收稿时间： | 2013/3/18 0:00:00 |
How Graphene Oxide Quenches Fluorescence of Rhodamine 6G |
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| Kai-li Fan,Zhen-kun Guo,Zhi-gang Geng,Jing Ge,Shen-long Jiang,Jia-hua Hu and Qun Zhang.How Graphene Oxide Quenches Fluorescence of Rhodamine 6G[J].Chinese Journal of Chemical Physics,2013,26(3):252-258. |
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| Authors: | Kai-li Fan Zhen-kun Guo Zhi-gang Geng Jing Ge Shen-long Jiang Jia-hua Hu and Qun Zhang |
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| 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. |
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| Keywords: | Graphene oxide Rhodamine 6G Fluorescence quenching Interaction Mechanism |
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