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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Structural properties of the graphene-SiC(0001) interface as a key for the preparation of homogeneous large-terrace graphene surfaces
TL;DR: In this paper, the interface between graphene and low energy electron diffraction (LEED) was investigated by scanning tunneling microscopy (STM) images and low-energy electron difforescence spectra, and the role of three observed phases with periodicities was discussed.
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Flexible and Stackable Laser-Induced Graphene Supercapacitors
TL;DR: By simple laser induction, commercial polyimide films can be readily transformed into porous graphene for the fabrication of flexible, solid-state supercapacitors, each with enhanced electrochemical performance, cyclability, and flexibility.
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Thickness-dependent reversible hydrogenation of graphene layers.
Zhiqiang Luo,Ting Yu,Ki-Jeong Kim,Zhenhua Ni,Yumeng You,San Hua Lim,Zexiang Shen,Shanzhong Wang,Jianyi Lin +8 more
TL;DR: Hydrogen coverage investigation and micro-X-ray photoelectron spectroscopy characterization demonstrates that the hydrogenation of single layer graphene on SiO(2)/Si substrate is much less feasible than that of bilayer and multilayer graphene.
Journal ArticleDOI
Transfer-free batch fabrication of single layer graphene transistors
TL;DR: The synthesis of large scale single layer graphene directly onto an evaporated copper film is reported, using a novel fabrication method to directly pattern these graphene sheets into devices by simply removing the underlying copper film.
Journal ArticleDOI
Photochemical chlorination of graphene.
TL;DR: In this article, the gas phase photochlorination of graphene, followed by the structural transformation of the C-C bonds from sp2 to sp3 configuration, could remove the conducting π-bands and open up a band gap in graphene.
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.