Graphene oxide as a substrate for Raman enhancement |
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| Authors: | Weizi Liang Xiaoyun Chen Yu Sa Yuanming Feng Yan Wang Wang Lin |
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| Institution: | 1. Department of Biomedical Engineering, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, 300072, China
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| Abstract: | We report the properties of graphene oxide, a two-dimensional carbon nanomaterial, as a substrate for surface-enhanced Raman scattering. The graphene oxide substrate produced Raman enhancement for rhodamine 6G, melamine, and cephalexin. Intense characteristic D and G peaks of graphene oxide were observed when positively charged rhodamine 6G and melamine were used as the Raman probe. We attribute the appearance of D and G peaks to the aggregation of negatively charged graphene oxide. |
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