欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
通过微机械剥离高定向热解石墨（HOPG）法和化学气相沉积法（CVD）分别制备了不同层数的石墨烯片,并将其转移到硅片上。利用石墨烯片在不同厚度SiO2硅片上光学显微图像颜色及对比度存在的差异,对其层数进行了识别与区分。采用原子力显微镜（AFM）和拉曼（Raman）光谱判定了所制石墨烯片的层数。结果表明：所制石墨烯片有单层、少数层和多层。与双层石墨烯片的Raman谱图比较,多层石墨烯片的2D模线宽变宽,G模强度增大。此外,CVD法可生长出大面积（～cm2）的石墨烯片。
英文摘要：
Few-layer graphene was prepared from highly oriented pyrolytic graphite by micromechanical cleavage and transferred to the silicaon coated with silicon dioxide（SiO2/Si）.The thickness of graphene on the SiO2/Si support was investigated by color and contrast variations under an optical microscope.Atomic force microscopy and Raman spectroscopy were used to determine the number of layers.Results show that a monolayer,double layers and multiple layers of graphene were prepared.The optical microscope images can give a satisfactory identification of the graphene thickness on SiO2/Si.In the Raman spectrum the 2D band is narrower and G band is weaker for double layers than that for multiple layers.Chemical vapor deposition was also used to grow large area（~cm2）graphene.However,micromechanical cleavage is a more simple method to prepare graphene.
同期刊论文项目
同项目期刊论文
Spherical Zn(2)SiO(4):Eu(3+)@SiO(2) phosphor particles in core-shell structure: Synthesis and charac
Evaluating Acceleration Ability of Electrons of Different Acceleration Layers in Solid State Cathodo
Enhancedperformance in organic light-emitting diode by utilizing MoO3 –doped C60as effective hole in
Characteristics of organic light emitting diodes with vanadium oxide solution-treated indium tin oxi
Luminescence Properties of Nano-Sized Sr(2)MgSiO(5): Eu(2+), Mn(2+) Phosphors Prepared by the Sol-Ge
Synthesis and Luminescence Properties of Sr(2)SiO(4): Eu(3+), Dy(3+) Phosphors by the Sol-Gel Method
Electroluminescence of Zinc Selenium (ZnSe) Nanocrystals Co-Doped with Poly [2-methoxy-5-(2-ethylhex
Towards Color Stable Blue Primary for Displays: Suppress Field-Dependent Color Change in a Multilaye
Effects of the Introduced Single-Wall Carbon Nanotubes on the Performance of Blue Phosphorescence Or
Composition and annealing effects in solution-processable functionalized graphene oxide/P3HT based s
Preparation and Transmissivity of ZnS Nanocolumn Thin Films with Glancing Angle Deposition Technolog
The performance improvement in pentacene organic thin film transistors by inserting C(60)/MoO(3) ult
Magnetically Responsive Phase-Change Microspheres with Large Magnetization Using Ferrite Nanoparticl
Electrical bistability of copper (I) sulfide nanocrystals blending with a semiconducting polymer (vo
Improving photovoltaic properties by incorporating both SPFGraphene and functionalized multiwalled c
Study on the influences of quantum well structure on the performance of organic light emitting devic
Effect of MgO buffer layer thickness on the electrical properties of MgZnO thin film transistors fab
The improvement of near-ultraviolet electroluminescence of ZnO nanorods/MEH-PPV heterostructure by u
Improved performance of organic light- emitting diodes with cesium chloride insidetris (8-hydroxyqui
Structural and Optical Properties of Nonpolar (11(2)over-bar0) ZnO Films Grown by Plasma-Assisted Mo
Improving Photovoltaic Properties by Incorporating Solution-Processable Functionalized Graphene Into
Synthesis of Water Dispersible Hexagonal-phase NaYF4:Yb,Er Nanoparticles with High Efficient Upconve
Electric field-modulated amplified spontaneous emission in waveguides based on poly 2-methoxy-5-(2 '
Organic Deep Ultraviolet Photodetector With Response Peak Focusing on 270 nm Using the Acceptor BAlq
Enhanced performance of organic electroluminescent diodes by UV–ozone treatment of molybdenum trioxi
Improvement of amplified spontaneous emission performance of conjugated polymer waveguides with a lo
Enhanced brightness of organic light-emitting diodes based on Mg:Ag cathode using alkali metal chlor
Solar-Blind Photoresistors Based on Mg0.48Zn0.52O Thin Films Grown on r-Al2O3 Substrates by Radio-Fr
Non-doped red or blue electroluminescent materials based on fluorenyl-triarylamines with fumaronitri
Direct Synthesis of Hydrophobic Graphene-Based Nanosheets via Chemical Modification of Exfoliated Gr
Organic photodetectors based on transparent electrodes for application in ultraviolet light detectio
期刊信息
位置：