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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Large-area high-throughput synthesis of monolayer graphene sheet by Hot Filament Thermal Chemical Vapor Deposition
Ranjit R. Hawaldar,Pablo Merino,Maria R. Correia,Igor Bdikin,José Grácio,Javier Méndez,José A. Martín-Gago,Manoj K. Singh +7 more
TL;DR: HFTCVD is reported as a new hybrid of hot filament and thermal CVD and demonstrated its feasibility by producing high quality large area strictly monolayer graphene films on Cu substrates and confirmed the mechanistic hypothesis by depositing graphene on Ni and SiO2/Si substrates.
Journal ArticleDOI
Atomic-Scale Evidence for Potential Barriers and Strong Carrier Scattering at Graphene Grain Boundaries: A Scanning Tunneling Microscopy Study
TL;DR: F Fourier analysis of grain boundaries in polycrystalline graphene indicates that backscattering and intervalley scattering are the dominant mechanisms responsible for the mobility reduction in the presence of GBs in CVD-grown graphene.
Journal ArticleDOI
Site- and alignment-controlled growth of graphene nanoribbons from nickel nanobars
Toshiaki Kato,Rikizo Hatakeyama +1 more
TL;DR: Graphene nanoribbons grow directly between the source and drain electrodes of a field-effect transistor without transfer, lithography and other postgrowth treatments, and exhibit a clear transport gap, a high on/off ratio, and no hysteresis.
Journal ArticleDOI
Self-Reporting and Photothermally Enhanced Rapid Bacterial Killing on a Laser-Induced Graphene Mask.
Libei Huang,Siyu Xu,Zhaoyu Wang,Ke Xue,Jianjun Su,Yun Song,Sijie Chen,Chunlei Zhu,Ben Zhong Tang,Ruquan Ye +9 more
TL;DR: The bacteria viability on common face masks is identified and it is found that the majority of bacteria (90%) remain alive after 8 h and by using laser-induced graphene (LIG), the inhibition rate improves to ~81%.
Journal ArticleDOI
Active control of all-fibre graphene devices with electrical gating
Eun-Jung Lee,Sun Young Choi,Hwanseong Jeong,Nam Hun Park,Woongbin Yim,Mi Hye Kim,Jaeku Park,Suyeon Son,Sukang Bae,Sang Jin Kim,Kwanil Lee,Yeong Hwan Ahn,Kwang Jun Ahn,Byung Hee Hong,Ji-Yong Park,Fabian Rotermund,Dong-Il Yeom +16 more
TL;DR: Elect electrically manipulable in-line graphene devices by integrating graphene-based field effect transistors on a side-polished fibre will open promising way for actively controlled optoelectronic and nonlinear photonic devices in all-fibre platform with greatly enhanced graphene–light interaction.
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.