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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Triple-mode single-transistor graphene amplifier and its applications.
TL;DR: A triple-mode single-transistor graphene amplifier utilizing a three-terminal back-gated single-layer graphene transistor, which offers new opportunities for designing analog circuits with simpler structure and higher integration densities for communications applications.
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Raman characterization of ABA- and ABC-stacked trilayer graphene
Chunxiao Cong,Ting Yu,Ting Yu,Kentaro Sato,Jingzhi Shang,Riichiro Saito,Gene Dresselhaus,Mildred S. Dresselhaus +7 more
TL;DR: A systematic experimental and theoretical analysis of the Raman modes in bothBernal (ABA stacking order) and rhombohedral trilayer graphene (3LG) shows that the G band, G' (2D) band, and the intermediate-frequency combination modes of 3LGs are sensitive to the stacking order of 3LG.
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Sulfur-doped graphene as a potential alternative metal-free electrocatalyst and Pt-catalyst supporting material for oxygen reduction reaction
TL;DR: S-graphene can be used as a novel graphene-based efficient metal-free ORR catalyst in fuel cells and its limiting current density and durability were improved compared to those of the commercial Pt/C catalyst.
Journal ArticleDOI
Effective doping of single-layer graphene from underlying SiO2 substrates
TL;DR: In this article, the substrate-dependent doping of single-layer graphene (SLG) films is further confirmed by Raman and electrical measurements, and the unique electronic structures of SLG films make them sensitive to the doping rather than effective gating from the substrates.
Journal ArticleDOI
Seeing graphene-based sheets
TL;DR: An overview of current imaging techniques for graphene-based sheets and highlights a recently developed fluorescence quenching microscopy technique that allows high-throughput, high-contrast imaging of graphene based sheets on arbitrary substrate and even in solution as mentioned in this paper.
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.