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29 January 2019 X-ray photoelectron spectroscopy characterization of amorphous and nanosized thin carbon films
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Proceedings Volume 11047, 20th International Conference and School on Quantum Electronics: Laser Physics and Applications; 110470D (2019) https://doi.org/10.1117/12.2516243
Event: International Conference and School on Quantum Electronics "Laser Physics and Applications": ICSQE 2018, 2018, Nessebar, Bulgaria
Abstract
Carbon exists in the form of many allotropes: zero-dimensional sp2 fullerenes, the two- dimensional (2D) sp2 honeycomb lattice of graphene (parent to graphite and carbon nanotubes), or three-dimensional (3D) sp3 crystals - diamond and lonsdaleite. Carbon can also exist in the form of carbine, a one dimensional (1D) infinite chain of sp1-hybridized carbon atoms. Each of them has notably different electronic and mechanical properties. Accordingly, it is highly important to correctly identify the hybridization state of carbon for the industrial application of these materials. It is well known that the phase ratio of sp2 and sp3 hybridized carbon is distinguishable by X-ray Photoelectron Spectroscopy (XPS) and especially by analysis of C1s lines. Here we report on a thorough XPS study of thin carbon films deposited by pulsed laser deposition (PLD). The studied films consist of a mix of carbon phases deposited on SiO2/(001)Si substrates. The obtained XPS results allows the optimization of PLD process parameters in order to synthesize single to few layered defected graphene/ graphene-like films.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
I. Avramova, A. Dikovska, E. Valcheva, P. Terziiska, J. Mladenoff, L. Tzonev, S. Kolev, and T. Milenov "X-ray photoelectron spectroscopy characterization of amorphous and nanosized thin carbon films", Proc. SPIE 11047, 20th International Conference and School on Quantum Electronics: Laser Physics and Applications, 110470D (29 January 2019); https://doi.org/10.1117/12.2516243
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