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Issue 72, 2016, Issue in Progress
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Non-interacting, sp2 carbon on a ferroelectric lead zirco-titanate: towards graphene synthesis on ferroelectrics in ultrahigh vacuum

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Abstract

Carbon layers grown on lead zirco-titanate (PZT) weakly interact with the substrate and exhibit a nearly two dimensional character, up to a carbon surface density approaching that of graphene. The first feature is evidenced by X-ray photoelectron spectroscopy, and the second by angle resolved near-edge-absorption spectroscopy (NEXAFS). The binding energies and lineshape parameters of C 1s are similar to that of graphene. The dichroism of C K-edge NEXAFS shows the prevalence of in-plane sp2 bonds for layers whose effective coverage is below the graphene surface density. The polarization state of the substrate, oriented outwards, is preserved upon carbon deposition. The surface Pb content is strongly affected by the carbon ad-layers.

Graphical abstract: Non-interacting, sp2 carbon on a ferroelectric lead zirco-titanate: towards graphene synthesis on ferroelectrics in ultrahigh vacuum

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Supplementary files

Article information


Submitted
18 May 2016
Accepted
12 Jul 2016
First published
12 Jul 2016

RSC Adv., 2016,6, 67883-67887
Article type
Communication

Non-interacting, sp2 carbon on a ferroelectric lead zirco-titanate: towards graphene synthesis on ferroelectrics in ultrahigh vacuum

N. G. Apostol, G. A. Lungu, I. C. Bucur, C. A. Tache, L. Hrib, L. Pintilie, D. Macovei and C. M. Teodorescu, RSC Adv., 2016, 6, 67883
DOI: 10.1039/C6RA12910B

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