Raman spectroscopy and imaging of graphene
By Zhenhua Ni, Yingying Wang, T. Yu, Zexiang Shen. 2008
1,313 citations recorded by the source corpus.
Graphene has many unique properties that make it an ideal material for fundamental studies as well as for potential applications. Here we review recent results on the Raman spectroscopy and imaging of graphene. We show that Raman spectroscopy and imaging can be used as a quick and unambiguous method to determine the number of graphene layers. The strong Raman signal of single layer graphene compared to graphite is explained by an interference enhancement model. We have also studied the effect of substrates, the top layer deposition, the annealing process, as well as folding (stacking order) on the physical and electronic properties of graphene. Finally, Raman spectroscopy of epitaxial graphene grown on a SiC substrate is presented and strong compressive strain on epitaxial graphene is observed. The results presented here are highly relevant to the application of graphene in nano-electronic devices and help in developing a better understanding of the physical and electronic properties of graphene.
Subfields: Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/863b79b25794687b4e6ce1f665e315031a0c2ebc
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In Materials Chemistry
Citations in the corpus
- Defects as a factor limiting carrier mobility in WSe2: A spectroscopic investigation (2016, methodology): “Furthermore, by manipulating the focused laser beam, such optical methods can have spatial resolution varying from sub-micrometer to centimeter [20, 21].”
- One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis (2013, background): “The similar 2D peaks of ZnO containing samples indicate that the graphene stack structure has not been changed with or without CTAB [37].”
- Graphene Schottky diodes: an experimental review of the rectifying graphene/semiconductor heterojunction (2015, background): “The 2D band is due to a two phonon resonance process, involving phonons near the K point, and is dominant in graphene as compared to bulk graphite [102].”
- Graphene Quantum Dots: Graphene-Enhanced Nanomaterials for Wall Painting Protection (Adv. Funct. Mater. 44/2018) (2018, neutral): “Wherein, the ratio of intensity of 2D and G peaks (I2D/IG) determine the number of layers present in the graphene which is 1.7 (Childres et al.; Yu, 2008).”
- Low-cost and flexible printed graphene–PEDOT:PSS gas sensor for ammonia detection (2014, result): “The relatively broad 2D band of graphene compared with G band indicates that the existing graphene has a few sp(2) layers [33,34] corresponding to the TEM results.”