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

K. Kertész, A. A. Koós, A. T. Murdock, Z. Vértesy, P. Nemes-Incze, P. J. Szabó, Z. E. Horváth, L. Tapasztó, Chanyong Hwang, N. Grobert, L. P. Biró

Research output: Contribution to journalArticle

7 Citations (Scopus)

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 (E →) of polarized light is parallel with the step edges and with the scattering when the E → 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.

Original languageEnglish
Article number213103
JournalApplied Physics Letters
Volume100
Issue number21
DOIs
Publication statusPublished - May 21 2012

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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