Defective graphene as a high-efficiency Raman enhancement substrate
Zhao, Tong; Liu, Zhibo; Xin, Xing; Cheng, Hui-Ming; Ren, Wencai
AbstractPristine graphene (PG) has been demonstrated to be an excellent substrate for Raman enhancement, which is called graphene-enhanced Raman scattering. However, the chemically inert and hydrophobic surface of PG hinders the adsorption of molecules especially in aqueous solutions, and consequently limits the Raman enhanced efficiency. Here, we synthesized defective graphene (DG) films by chemical vapor deposition on Au. which has a defect density of similar to 2.0 x 10(11) cm(-2). The DG shows a much better wettability than PG towards dye solution. Combining with the strong adsorption ability of defects to molecules, DG shows greatly enhanced efficiency than PG with perfect lattice. For example, the detection limit for rhodamine B can reach 2 x 10(-9) M for DG while it is on the order of 10(-7) M for PG. In addition, DG has high enhancement uniformity and the Au substrate can be reused after electrochemical bubbling transfer. These advantages suggest the great potential of the DG grown on Au for practical applications in environmental monitoring. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordDefective graphene Raman enhancement Chemical vapor deposition Bubbling transfer
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WOS IDWOS:000475870600023
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
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GB/T 7714
Zhao, Tong,Liu, Zhibo,Xin, Xing,et al. Defective graphene as a high-efficiency Raman enhancement substrate[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(9):1996-2002.
APA Zhao, Tong,Liu, Zhibo,Xin, Xing,Cheng, Hui-Ming,&Ren, Wencai.(2019).Defective graphene as a high-efficiency Raman enhancement substrate.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(9),1996-2002.
MLA Zhao, Tong,et al."Defective graphene as a high-efficiency Raman enhancement substrate".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.9(2019):1996-2002.
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