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The phosphorescence and excitation-wavelength dependent fluorescence kinetics of large-scale graphene oxide nanosheets
Zhao, Litao; Yu, Xiantong; Zhang, Sanjun; He, Xiaoxiao; Li, Lei; Jia, Menghui; Chang, Mengfang; Pan, Haifeng; Chen, Jinquan; Wang, Wenjun; Xu, Jianhua; phywwang@163.com; jhxu@phy.ecnu.edu.cn
2017
发表期刊RSC Adv.
卷号7期号:37页码:22684
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.
文章类型Article
部门归属强光
DOI10.1039/c7ra01115f
资助者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] ; 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] ; 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] ; 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]
收录类别SCI
资助者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] ; 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] ; 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] ; 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
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.siom.ac.cn/handle/181231/28734
专题强场激光物理国家重点实验室
通讯作者phywwang@163.com; jhxu@phy.ecnu.edu.cn
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
Zhao, Litao,Yu, Xiantong,Zhang, Sanjun,et al. The phosphorescence and excitation-wavelength dependent fluorescence kinetics of large-scale graphene oxide nanosheets[J]. RSC Adv.,2017,7(37):22684.
APA Zhao, Litao.,Yu, Xiantong.,Zhang, Sanjun.,He, Xiaoxiao.,Li, Lei.,...&jhxu@phy.ecnu.edu.cn.(2017).The phosphorescence and excitation-wavelength dependent fluorescence kinetics of large-scale graphene oxide nanosheets.RSC Adv.,7(37),22684.
MLA Zhao, Litao,et al."The phosphorescence and excitation-wavelength dependent fluorescence kinetics of large-scale graphene oxide nanosheets".RSC Adv. 7.37(2017):22684.
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