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Production of carbon dots during the liquid phase exfoliation of MoS2 quantum dots
Zhang, Weimin1,2; Du, Jinhong1,2; Liu, Zhibo1; Zhang, Dingdong1; Wei, Qinwei1,2; Liu, Haichao1; Ma, Wei1,2; Ren, Wencai1,2; Cheng, Hui-Ming1,2,3
Corresponding AuthorRen, Wencai(wcren@imr.ac.cn) ; Cheng, Hui-Ming(cheng@imr.ac.cn)
2019-12-01
Source PublicationCARBON
ISSN0008-6223
Volume155Pages:243-249
AbstractN-methyl-2-pyrrolidone (NMP) has been widely used as a solvent for preparing two-dimensional quantum dots (2D-QDs) by probe sonication. Here we found that carbon dots (CDs) are simultaneously produced by the carbonization of NMP when preparing MoS2 QDs in a NMP solvent by probe sonication. These two kinds of QDs are similar in color, crystal structure, excitation wavelength dependent photoluminescence (PL), and have overlaps in their absorption spectra and coincidence of PL peaks. As a result, the co-production of CDs has not previously been recognized. The CDs show strong optical interactions with the MoS2 QDs, which leads to a dramatic decrease in the fluorescence intensity of the CDs/MoS2 QDs. Moreover, we found that the carbonization also occurs for the commonly used organic solvents. These findings suggest that associated production of CDs should be considered when preparing 2D-QDs by probe sonication, and the resulting hybrid CDs/2D-QDs will provide opportunities to design their properties and uses. (C) 2019 Elsevier Ltd. All rights reserved.
Funding OrganizationMinistry of Science and Technology of China ; National Science Foundation of China ; Postdoctoral Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Liaoning Revitalization Talents Program ; Economic, Trade and Information Commission of Shenzhen Municipality for the 2017 Graphene Manufacturing Innovation Center Project
DOI10.1016/j.carbon.2019.08.067
Indexed BySCI
Language英语
Funding ProjectMinistry of Science and Technology of China[2016YFA0200101] ; National Science Foundation of China[51325205] ; National Science Foundation of China[51290273] ; National Science Foundation of China[51572265] ; National Science Foundation of China[51861135201] ; Postdoctoral Science Foundation of China[2018M630309] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB30000000] ; Liaoning Revitalization Talents Program[XLYC1808013] ; Economic, Trade and Information Commission of Shenzhen Municipality for the 2017 Graphene Manufacturing Innovation Center Project[201901171523]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000491864400029
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136828
Collection中国科学院金属研究所
Corresponding AuthorRen, Wencai; Cheng, Hui-Ming
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
3.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Weimin,Du, Jinhong,Liu, Zhibo,et al. Production of carbon dots during the liquid phase exfoliation of MoS2 quantum dots[J]. CARBON,2019,155:243-249.
APA Zhang, Weimin.,Du, Jinhong.,Liu, Zhibo.,Zhang, Dingdong.,Wei, Qinwei.,...&Cheng, Hui-Ming.(2019).Production of carbon dots during the liquid phase exfoliation of MoS2 quantum dots.CARBON,155,243-249.
MLA Zhang, Weimin,et al."Production of carbon dots during the liquid phase exfoliation of MoS2 quantum dots".CARBON 155(2019):243-249.
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