The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
UV/Ozone-Oxidized Large-Scale Graphene Platform with Large Chemical Enhancement in Surface-Enhanced Raman Scattering
Abstract
We fabricated a highly oxidized large-scale graphene platform using chemical vapor deposition (CVD) and UV/ozone-based oxidation methods. This platform offers a large-scale surface-enhanced Raman scattering (SERS) substrate with large chemical enhancement in SERS and reproducible SERS signals over a centimeter-scale graphene surface. After UV-induced ozone generation, ozone molecules were reacted with graphene to produce oxygen-containing groups on graphene and induced the p-type doping of the graphene. These modifications introduced the structural disorder and defects on the graphene surface and resulted in a large chemical mechanism-based signal enhancement from Raman dye molecules [rhodamine B (RhB), rhodamine 6G (R6G), and crystal violet (CV) in this case] on graphene. Importantly, the enhancement factors were increased from ∼10(3) before ozone treatment to ∼10(4), which is the largest chemical enhancement factor ever on graphene, after 5 min ozone treatment due to both high oxidation and p-doping effects on graphene surface. Over a centimeter-scale area of this UV/ozone-oxidized graphene substrate, strong SERS signals were repeatedly and reproducibly detected. In a UV/ozone-based micropattern, UV/ozone-treated areas were highly Raman-active while nontreated areas displayed very weak Raman signals.
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Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
Experimental observation of the quantum Hall effect and Berry's phase in graphene
Zhang, Y., Tan, Y.-W., Stormer, H. L., & Kim, P. (2005) · Nature · doi:10.1038/nature04235 · Cited by 13,435
Cited by
Georgakilas, V., Perman, J. A., Tucek, J., & Zboril, R. (2015) · Chemical Reviews · doi:10.1021/cr500304f · Cited by 2,147
Removal of Cu(II) and Fulvic Acid by Graphene Oxide Nanosheets Decorated with Fe3O4 Nanoparticles
Li, J., Zhang, S., Chen, C., Zhao, G., Yang, X., Li, J., & Wang, X. (2012) · ACS Applied Materials & Interfaces · doi:10.1021/am301358b · Cited by 516
Graphene: A Platform for Surface‐Enhanced Raman Spectroscopy
Xu, W., Mao, N., & Zhang, J. (2013) · Small · doi:10.1002/smll.201203097 · Cited by 511
Mechanisms of Molecular Permeation through Nanoporous Graphene Membranes
Sun, C., Boutilier, M. S. H., Au, H., Poesio, P., Bai, B., Karnik, R., & Hadjiconstantinou, N. G. (2014) · Langmuir · doi:10.1021/la403969g · Cited by 287
Metadata
- Authors
- Huh, S., Park, J., Kim, Y. S., Kim, K. S., Hong, B. H., & Nam, J.-M.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-11-16
- Volume
- 5
- Issue
- 12
- Pages
- 9799-9806
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2138891377
- Cited by
- 380
- References
- 2
- FWCI
- 9.09
- Type
- journal article
- Language
- en
- Open access
- closed
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