Raman Enhancement by Graphene-Ga2O3 2D Bilayer Film
Date
2014-01
Authors
Zhu, Yun
Yu, Qingkai
Ding, Gu-Qiao
Xu, Xu-Guang
Wu, Tian-Ru
Gong, Qian
Yuan, Ning-Yi
Ding, Jian-Ning
Wang, Shu-Min
Xie, Xiao-Ming
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
Abstract
2D β-Ga2O3 flakes on a continuous 2D graphene film were prepared by a one-step chemical vapor deposition on liquid gallium surface. The composite was characterized by optical microscopy, scanning electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and X-ray photoelectron spectroscopy (XPS). The experimental results indicate that Ga2O3 flakes grew on the surface of graphene film during the cooling process. In particular, tenfold enhancement of graphene Raman scattering signal was detected on Ga2O3 flakes, and XPS indicates the C-O bonding between graphene and Ga2O3. The mechanism of Raman enhancement was discussed. The 2D Ga2O3-2D graphene structure may possess potential applications.
Description
Keywords
graphene, raman enhancement, gallium oxide, chemical vapor deposition, Ingram School of Engineering
Citation
Zhu, Y., Yu, Q. K., Ding, G. Q., Xu, X. G., Wu, T. R., Gong, Q., Yuan, N. Y., Ding, J. N., Wang, S. M., Xie, X. M., & Jiang, M. H. (2014). Raman enhancement by graphene-Ga2O3 2D bilayer film. Nanoscale Research Letters, 9(48).
Rights
Rights Holder
© 2014 Zhu et al.
Rights License
This work is licensed under a Creative Commons Attribution 2.0 Generic License.