Raman spectrum of graphene and graphene layers.
Andrea C. Ferrari,Jannik C. Meyer,Vittorio Scardaci,Cinzia Casiraghi,Michele Lazzeri,Francesco Mauri,S. Piscanec,Da Jiang,K. S. Novoselov,S. Roth,A. K. Geim +10 more
TLDR
This work shows that graphene's electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers, and allows unambiguous, high-throughput, nondestructive identification of graphene layers, which is critically lacking in this emerging research area.Abstract:
Graphene is the two-dimensional building block for carbon allotropes of every other dimensionality We show that its electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers The D peak second order changes in shape, width, and position for an increasing number of layers, reflecting the change in the electron bands via a double resonant Raman process The G peak slightly down-shifts This allows unambiguous, high-throughput, nondestructive identification of graphene layers, which is critically lacking in this emerging research arearead more
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Properties of Graphene/Waterborne Polyurethane Nanocomposites Cast from Colloidal Dispersion Mixtures
Sang Hyop Choi,Dong-Hoon Kim,Anjanapura V. Raghu,Kakarla Raghava Reddy,Hyung-il Lee,Koo Sik Yoon,Han Mo Jeong,Byung Kyu Kim +7 more
TL;DR: In this article, a colloidal dispersion of functionalized graphene sheets and waterborne polyurethane (WPU) was used to construct a nanocomposite with enhanced electrical conductivity and thermal resistance.
Journal ArticleDOI
Core–Shell Ge@Graphene@TiO2 Nanofibers as a High-Capacity and Cycle-Stable Anode for Lithium and Sodium Ion Battery
TL;DR: In this paper, germanium@graphene nanofibers are first obtained through electrospinning followed by calcination, and then atomic layer deposition is used to fabricate germanIUM@Graphene@TiO2 core-shell nanofiber composite as anode materials for lithium and sodium ion batteries (LIBs and SIBs).
Journal ArticleDOI
Intrinsic response time of graphene photodetectors.
TL;DR: Measurements of the intrinsic response time of metal–graphene–metal photodetectors with monolayer graphene are presented using an optical correlation technique with ultrashort laser pulses to investigate the dependence of the response time on gate voltage and illumination laser power.
Journal ArticleDOI
Three dimensional few layer graphene and carbon nanotube foam architectures for high fidelity supercapacitors
Wei Wang,Shirui Guo,Miroslav Penchev,Isaac Ruiz,Krassimir N. Bozhilov,Dong Yan,Mihrimah Ozkan,Cengiz S. Ozkan +7 more
TL;DR: In this article, a simple and scalable method to fabricatethree-dimensional (3D) few-layer graphene/multi-walled carbon nanotube (MWNT) hybridnanostructures on industrial grade metal foam foils (nickel foam) via a one-step ambient pressure chemical vapor deposition (APCVD) process is described.
Journal ArticleDOI
The Influence of Strong Electron and Hole Doping on the Raman Intensity of Chemical Vapor-Deposition Graphene
M. Kalbac,M. Kalbac,Alfonso Reina-Cecco,Hootan Farhat,Jing Kong,Ladislav Kavan,Mildred S. Dresselhaus +6 more
TL;DR: The striking feature is an increase of the Raman intensity of the G mode at a high value of the positive electrode potential, found to be a function of laser excitation energy.
References
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疟原虫var基因转换速率变化导致抗原变异[英]/Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.