Please use this identifier to cite or link to this item:
|Title:||Gold on graphene as a substrate for surface enhanced Raman scattering study|
|Source:||Wang, Y., Ni, Z., Hu, H., Hao, Y., Wong, C.P., Yu, T., Thong, J.T.L., Shen, Z.X. (2010-10-18). Gold on graphene as a substrate for surface enhanced Raman scattering study. Applied Physics Letters 97 (16) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3505335|
|Abstract:||In this paper, we report our study on gold (Au) films with different thicknesses deposited on single layer graphene (SLG) as surface enhanced Raman scattering (SERS) substrates for the characterization of rhodamine (R6G) molecules. We find that an Au film with a thickness of ∼7 nm deposited on SLG is an ideal substrate for SERS, giving the strongest Raman signals for the molecules and the weakest photoluminescence (PL) background. While Au films effectively enhance both the Raman and PL signals of molecules, SLG effectively quenches the PL signals from the Au film and molecules. The former is due to the electromagnetic mechanism involved while the latter is due to the strong resonance energy transfer from Au to SLG. Hence, the combination of Au films and SLG can be widely used in the characterization of low concentration molecules with relatively weak Raman signals. © 2010 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 7, 2017
WEB OF SCIENCETM
checked on Nov 29, 2017
checked on Dec 11, 2017
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.