Optical Absorption and Raman Scattering Studies of Few-Layer Epitaxial Graphene Grown on 4H-SiC Substrates

• Authors: K. Grodecki , A. Drabińska , R. Bożek , A. Wysmołek , K. Korona , W. Strupiński , J. Borysiuk , R. Stępniewski , J. Baranowski
• Languages of publication: EN

Abstracts

EN

Optical absorption and Raman scattering studies of few-layer epitaxial graphene obtained by high temperature annealing of carbon terminated face of 4H-SiC(000-1) on-axis substrates are presented. Changing the pressure and annealing time, different stages of the graphene formation were achieved. Optical absorption measurements enabled us to establish average number of graphene layers covering the SiC substrate. Raman scattering experiments showed that integrated intensity of the characteristic 2D peak positively correlated with the number of graphene layers deposited on the SiC substrate. The spectral width of the 2D peak was found to decrease with the number of the deposited graphene layers.

Keywords

EN

78.66.Tr; 78.40.Ri; 78.30.Na; 63.20.dd; 63.20.kd

Discipline

• 78.66.Tr: Fullerenes and related materials
• 63.20.kd: Phonon-electron interactions
• 78.40.Ri: Fullerenes and related materials
• 63.20.dd: Measurements
• 78.30.Na: Fullerenes and related materials

• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 116
• Issue: 5
• Pages: 835-837

Dates

published

2009-11

Contributors

author

K. Grodecki

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
• Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland

author

A. Drabińska

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

R. Bożek

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

A. Wysmołek

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

K. Korona

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

W. Strupiński

• Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland

author

J. Borysiuk

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

R. Stępniewski

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

J. Baranowski

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland
• Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.116.835