夏明岗
- 教授
- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- E-Mail:
- Date of Employment:2002-04-09
- Education Level:With Certificate of Graduation for Doctorate Study
- Professional Title:教授
- Status:Employed
- Alma Mater:西安交通大学
- College:School of Physics
- Discipline:Physics
- Papers
Raman spectra of bilayer graphene covered with Poly(methyl methacrylate) thin film
Release Time:2025-04-30 Hits:
- Date:2025-04-30
- Title of Paper:Raman spectra of bilayer graphene covered with Poly(methyl methacrylate) thin film
- Journal:AIP Adv.
- Summary:The Raman spectra of bilayer graphene covered with poly(methyl methacrylate) (PMMA) were investigated. Both the G and 2D peaks of PMMA-coated graphene were stiff and broad compared with those of uncovered graphene. This could be attributed to the residual strain induced by high-temperature baking during fabrication of the nanodevice. Furthermore, the two 2D peaks stiffened and broadened with increasing laser power, which is just the reverse to uncovered graphene. The stiffness is likely caused by graphene compression induced by the circular bubble of the thin PMMA film generated by laser irradiation. Our findings may contribute to the application of PMMA in the strain engineering of graphene nanodevices.
- Co-author:M. G. Xia*, Z. D. Su, S. L. Zhang,
- Volume:2
- Page Number:032122
- Translation or Not:No
- Date of Publication:2012-09-05