Direct synthesized graphene-like film on SiO2: Mechanical and optical properties
Journal Title: Semiconductor Physics, Quantum Electronics and Optoelectronics - Year 2016, Vol 19, Issue 4
Abstract
Exploiting CVD technique for carbon deposition from C2H2+H2+N2 mixture, a graphene-like film synthesized directly on SiO2 surface of SiO2-Si structure was obtained. The graphene-like film was grown under thin Ni layer that is easy exfoliated from graphene-SiO2-Si structure. Surface of the film was sufficiently smooth and reveals no winkles and holes; it has a good homogeneity and perfect adhesion to SiO2 layer. Studying the micro-Raman spectra showed a graphene-like structure of the film; using atomic force microscopic technique, the thickness of film was determined (0.6 nm). Using spectroscopic ellipsometry and simple Cauchy model enabled us to estimate optical parameters of this graphene-like film.
Authors and Affiliations
E. G. Bortchagovsky, A. V. Vasin, P. M. Lytvyn, S. I. Tiagulskyi, A. M. Slobodyan, I. N. Verovsky, V. V. Strelchuk, Yu. Stubrov, A. N. Nazarov
Keywords
Related Articles
- EP ID EP178300
- DOI 10.15407/spqeo19.04.328
- Views 84
- Downloads 0
Quantitative optical trapping and optical manipulation of micro-sized objects
An optical tweezers technique is used for ultraprecise micromanipulation to measure positions of micrometer scale objects with a precision down to the nanometer scale. It consists of a high performance research microscop...
Dielectric spectroscopy of CuInSe2 single crystals
The results of high-frequency dielectric measurements with obtained α-CuInSe2 single crystals provided an opportunity to determine the mechanisms of dielectric losses and charge transport, and also to evaluate the densit...
Electronic structure and optical properties of HgSe
We have performed the density functional theory calculations of mercury selenide compound using the plane-wave pseudo-potential (PWPP) method within the generalized gradient approximation to investigate the electronic st...
Nonmonotonic (in concentration) conductivity of aqueous solutions of fungal melanin
The conductivity of aqueous (distilled and natural water) solutions of fungal melanin (purified and non-purified) has been studied. It has been shown that, in the presence of impurities, the conductivity of solution incr...
Structural properties of chalcogenide glasses As2Se3 doped with manganese
The paper presents results of studying structural properties inherent to chalcogenide glasses doped with manganese. Investigations of the structure were carried out using Raman spectroscopy and X-ray diffraction. The fun...