Edge chirality determination of graphene by Raman spectroscopy
By Y. You, Zhenhua Ni, T. Yu, Zexiang Shen. 2008
255 citations recorded by the source corpus.
Raman imaging of single layer micromechanical cleavage graphene was carried out. The intensity of disorder-induced Raman feature (D band at ∼1350cm−1) was found to be correlated to the edge chirality: it is stronger at the armchair edge and weaker at the zigzag edge. This shows that Raman spectroscopy is a reliable and practical method to identify the chirality of graphene edge and hence the crystal orientation. The determination of graphene chirality is critically important for fundamental study of graphene as well as applications of graphene-based devices.
Subfields: Biomedical Engineering, Biophysics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/1b9fdd0eff3eb9721000a1ecdc310c0cac7a3285
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Citations in the corpus
- Raman characterization of defects and dopants in graphene (2015, background): “The anisotropy in the D band intensity was extensively studied in [60], where the authors performed statistical analysis on Raman images obtained from monolayer graphene samples with straight edges forming different relative angles to each other (figure 12) [60].”
- Spectroscopic investigation of defects in two-dimensional materials (2016, background): “Studies found that most of the angles of graphene are distributed around n30 o , where n is an integer between 0 and 6, which suggests that graphene has zigzag or armchair edges [70].”