Visualization of arrangements of carbon atoms in graphene layers by Raman mapping and atomic-resolution TEM

Visualization of arrangements of carbon atoms in graphene layers by Raman mapping and atomic-resolution TEM

In-plane and out-of-plane arrangements of carbon atoms in graphene layers play critical roles in the fundamental physics and practical applications of these novel two-dimensional materials. Here, we report initial results on the edge/crystal orientations and stacking orders of bi- and tri-layer grap...

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Bibliographic Details
Main Authors: Cong, Chunxiao, Li, Kun, Zhang, Xi Xiang, Yu, Ting
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Subjects:
DRNTU::Science::Mathematics::Applied mathematics::Data visualization
Online Access:https://hdl.handle.net/10356/97552
http://hdl.handle.net/10220/9986
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Institution: Nanyang Technological University
Language: English
Description
Summary:In-plane and out-of-plane arrangements of carbon atoms in graphene layers play critical roles in the fundamental physics and practical applications of these novel two-dimensional materials. Here, we report initial results on the edge/crystal orientations and stacking orders of bi- and tri-layer graphene (BLG and TLG) from Raman spectroscopy and transmission electron microscopy (TEM) experiments performed on the same sample. We introduce a new method of transferring graphene flakes onto a normal TEM grid. Using this novel method, we probed the BLG and TLG flakes that had been previously investigated by Raman scattering with high-resolution (atomic) TEM.

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