2008/12/02 by D. Teweldebrhan, Desalegne Teweldebrhan, Alexander A. Balandin +1 · 3 citations
Biochemistry, Genetics and Molecular Biology · Engineering · Materials Science · Physics and Astronomy · #Advanced Electron Microscopy Techniques and Applications #Graphene research and applications #Ion-surface interactions and analysis #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.3062851
published as Applied Physics Letters, 94, 013101 (2009) · 13 pages and 4 figures
arxiv created 2008/12/02 · openalex publication_date 2009/01/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The authors report micro-Raman investigation of changes in the single and bilayer graphene crystal lattice induced by the low and medium energy electron-beam irradiation (5–20 keV). It was found that the radiation exposures result in the appearance of the strong disorder D band around 1345 cm−1, indicating damage to the lattice. The D and G peak evolution with increasing radiation dose follows the amorphization trajectory, which suggests graphene’s transformation to the nanocrystalline and then to amorphous form. The results have important implications for graphene characterization and device fabrication, which rely on the electron microscopy and focused ion beam processing.