Document Details

Document Type : Article In Journal 
Document Title :
Structure and spectroscopic analysis of the graphene monolayer film directly grown on the quartz substrate via the HF-CVD technique
Structure and spectroscopic analysis of the graphene monolayer film directly grown on the quartz substrate via the HF-CVD technique
 
Subject : physics 
Document Language : English 
Abstract : Direct growth of a monolayer graphene film on a quartz substrate by a hot filament chemical vapor deposition technique is reported. The monolayer graphene film prepared was characterized by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), selected area electron diffraction (SAED), and atomic force microscopy (AFM). The optical properties were studied by spectroscopic elliposmetry. The experimental data were fitted by the Forouhi-Bloomer model to estimate the extinction coefficient and the refractive index of the monolayer graphene film. The refractive index spectrum in the visible region was studied based on the harmonic oscillator model. The lattice dielectric constant, real and imaginary dielectric constants and the ratio of the charge carrier number to the effective mass were determined. The surface and volume energy loss parameters were also found and showed that the value of the surface energy loss is greater than the volume energy loss. The determination of these optical constants will open new avenue for novel applications of graphene films in the field of wave plates, light modulators, ultrahigh frequency signal processing and LCDs 
ISSN : 0749-6036 
Journal Name : SUPERLATTICES AND MICROSTRUCTURES 
Volume : 96 
Issue Number : 1 
Publishing Year : 1437 AH
2016 AD 
Article Type : Article 
Added Date : Wednesday, August 9, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
W.E MahmoudMahmoud, W.E InvestigatorDoctoratew_e_mahmoud@yahoo.com
F.S Al-HazmiAl-Hazmi, F.S ResearcherDoctorate 
A.A Al-Ghamdi,Al-Ghamdi, A.A ResearcherDoctorate 
F.S ShokrShokr, F.S Researcher  
G.W BeallBeall, G.W ResearcherDoctorate 
L.M Bronstein,Bronstein, L.M ResearcherDoctorate 

Files

File NameTypeDescription
 42545.pdf pdf 

Back To Researches Page