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Polarized light microscopy of chemical-vapor-deposition-grown graphene on copper.

Authors :
Kertész, K.
Koós, A. A.
Murdock, A. T.
Vértesy, Z.
Nemes-Incze, P.
Szabó, P. J.
Horváth, Z. E.
Tapasztó, L.
Hwang, Chanyong
Grobert, N.
Biró, L. P.
Source :
Applied Physics Letters. 5/21/2012, Vol. 100 Issue 21, p213103. 5p. 1 Color Photograph, 3 Graphs.
Publication Year :
2012

Abstract

Linearly polarized light microscopy (PM) revealed that graphene grown by chemical vapor deposition (CVD) on stepped Cu substrate may appear colored. The coloration is associated with the coupling of the light of 450-600 nm into propagating mode in the graphene layer when the electric vector (Evector ) of polarized light is parallel with the step edges and with the scattering when the Evector is normal to the step edges. PM is an inexpensive, fast, and contamination free method to efficiently visualize graphene and to map the step structure of Cu substrates used for large area CVD growth of graphene. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00036951
Volume :
100
Issue :
21
Database :
Academic Search Index
Journal :
Applied Physics Letters
Publication Type :
Academic Journal
Accession number :
76143282
Full Text :
https://doi.org/10.1063/1.4719205