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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
Source PublicationRSC Adv.
Volume7Issue:37Pages:22684
AbstractIn 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.
SubtypeArticle
Department强光
DOI10.1039/c7ra01115f
Funding OrganizationNational 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]
Indexed BySCI
Funding OrganizationNational 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 IDWOS:000400338000008
Citation statistics
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27746
Collection强场激光物理国家重点实验室
Corresponding Authorphywwang@163.com; jhxu@phy.ecnu.edu.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
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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