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
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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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Excitation and Active Control of Propagating Surface Plasmon Polaritons in Graphene
Weilu Gao,Gang Shi,Zehua Jin,Jie Shu,Qi Zhang,Robert Vajtai,Pulickel M. Ajayan,Junichiro Kono,Qianfan Xu +8 more
TL;DR: The excitation and gate control of highly confined surface plasmon polaritons propagating through monolayer graphene using a silicon diffractive grating is demonstrated, providing a way to excite and actively control plAsmonic waves in graphene.
Journal ArticleDOI
Graphene-wrapped hierarchical TiO2 nanoflower composites with enhanced photocatalytic performance
TL;DR: Graphene-wrapped titanium dioxide nanoflower composites (G-TiO2) consisting of nanosheets and nanoparticles were synthesized using a two-step solvo/hydrothermal process as mentioned in this paper.
Journal ArticleDOI
Facile synthesis of Au-nanoparticle/polyoxometalate/graphene tricomponent nanohybrids: an enzyme-free electrochemical biosensor for hydrogen peroxide.
Rongji Liu,Shiwen Li,Xuelian Yu,Guangjin Zhang,Suojiang Zhang,Jiannian Yao,Bineta Keita,Louis Nadjo,Linjie Zhi +8 more
TL;DR: The amperometric measurements show the Au NPs@POM-GNSs nanohybrids have high catalytic activity with good sensitivity, good long-term stability, wide linear range, low detection limit, and fast response towards H( 2)O(2) detection for application as an enzyme-free biosensor.
Journal ArticleDOI
Natural polysaccharides-modified graphene oxide for adsorption of organic dyes from aqueous solutions.
TL;DR: In these tests, PS-GO composite materials were found to be more efficient than as-prepared GO as adsorbents for the removal of both cationic and anionic organic dyes.
Journal ArticleDOI
Classifying nanostructured carbons using graphitic indices derived from Raman spectra
TL;DR: In this article, a new parameter for estimating the length of the curved graphene planes is proposed to take into account the effect of curvature, and the importance of the second-order band at about 2700 cm −1 is emphasized.
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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.