The phosphorescence and excitation-wavelength dependent fluorescence kinetics of large-scale graphene oxide nanosheets
文献类型：期刊论文
| 作者 | Pan, Haifeng; Chen, Jinquan; Wang, Wenjun; Xu, Jianhua; He, Xiaoxiao; Li, Lei; Jia, Menghui; Chang, Mengfang; Zhao, Litao; Yu, Xiantong |
| 刊名 | RSC Adv.
 |
| 出版日期 | 2017 |
| 卷号 | 7期号:37页码:22684 |
| 通讯作者 | phywwang@163.com ; jhxu@phy.ecnu.edu.cn |
| 英文摘要 | In this study, phosphorescence emission and a strong excitation-wavelength dependent fluorescence has been found in large-scale graphene oxide (GO) nanosheets. GO was covalently functionalized with triphenylamine (GO-CONH-TPA) in order to enhance the GO fluorescence quantum yield to 18%. The intersystem crossing (ISC) dynamics were studied using a femtosecond transient absorption technique, which appeared in the same timescale as the fluorescence dynamics of GO-CONH-TPA in both a polar solvent and solid film. Therefore, both, the solvation (several hundreds of picoseconds) and the intersystem crossing (ISC) gave rise to the strong excitation-wavelength dependent fluorescence. Moreover, the phosphorescence emission of the GO-CONH-TPA film at room temperature has been described for the first time in this report, and the lifetime of phosphorescence was found to be 6.95 ms. The fluorescence kinetics of GO-CONH-TPA were attributed to the aromatic hydrocarbon-carboxylic domain structure of GO. |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation of China [61108077, 61178085, 61008003, 61275147]; Key Project of Science and Technology of Shandong Province of China [2010GGX10127]; Shandong Province Natural Science Foundation of China [ZR2012AL11, ZR2013EML006] |
| WOS记录号 | WOS:000400338000008 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/28734]  |
| 专题 | 上海光学精密机械研究所_强场激光物理国家重点实验室 |
| 作者单位 | 中国科学院上海光学精密机械研究所 |
| 推荐引用方式 GB/T 7714 | Pan, Haifeng,Chen, Jinquan,Wang, Wenjun,et al. The phosphorescence and excitation-wavelength dependent fluorescence kinetics of large-scale graphene oxide nanosheets[J]. RSC Adv.,2017,7(37):22684. |
| APA | Pan, Haifeng.,Chen, Jinquan.,Wang, Wenjun.,Xu, Jianhua.,He, Xiaoxiao.,...&Zhang, Sanjun.(2017).The phosphorescence and excitation-wavelength dependent fluorescence kinetics of large-scale graphene oxide nanosheets.RSC Adv.,7(37),22684. |
| MLA | Pan, Haifeng,et al."The phosphorescence and excitation-wavelength dependent fluorescence kinetics of large-scale graphene oxide nanosheets".RSC Adv. 7.37(2017):22684. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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