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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Monolayer Graphene as a Saturable Absorber in a Mode-Locked Laser
Qiaoliang Bao,Han Zhang,Zhenhua Ni,Yu Wang,Lakshminarayana Polavarapu,Zexiang Shen,Qing-Hua Xu,Dingyuan Tang,Kian Ping Loh +8 more
TL;DR: In this article, the intrinsic properties of monolayer graphene allow it to act as a more effective saturable absorber for mode-locking fiber lasers when compared to multilayer graphene.
Journal ArticleDOI
Fluorographene: a wide bandgap semiconductor with ultraviolet luminescence.
Ki-Joon Jeon,Zonghoon Lee,Elad Pollak,Luca Moreschini,Aaron Bostwick,Cheol-Min Park,Rueben J. Mendelsberg,Velimir Radmilovic,Robert Kostecki,Thomas J. Richardson,Eli Rotenberg +10 more
TL;DR: It is shown that treatment of graphene with xenon difluoride produces a partially fluorinated graphene (fluorographene) with covalent C-F bonding and local sp(3)-carbon hybridization, suggesting the use of fluorographane as a new, readily prepared material for electronic, optoelectronic applications, and energy harvesting applications.
Journal ArticleDOI
Transparent and conducting electrodes for organic electronics from reduced graphene oxide
TL;DR: In this paper, the authors describe the deposition and optoelectronic properties of reduced graphene oxide thin films with thicknesses ranging from 1-10nm by the vacuum filtration method.
Journal ArticleDOI
Flexible Piezoelectric-Induced Pressure Sensors for Static Measurements Based on Nanowires/Graphene Heterostructures
TL;DR: A pressure sensor with nanowires/graphene heterostructures for static measurements based on the synergistic mechanisms between strain-induced polarization charges in piezoelectric nanowire and graphene and the caused change of carrier scattering in graphene shows great potential in the applications of electronic skin and wearable devices.
Journal ArticleDOI
Tin disulfide-an emerging layered metal dichalcogenide semiconductor: materials properties and device characteristics.
Yuan Huang,Eli Sutter,Jerzy T. Sadowski,Mircea Cotlet,Oliver L.A. Monti,David A. Racke,Mahesh R. Neupane,Darshana Wickramaratne,Roger K. Lake,Bruce A. Parkinson,Peter Sutter +10 more
TL;DR: A comprehensive characterization of the properties of tin disulfide (SnS2), an emerging semiconducting metal dichalcogenide, down to the monolayer limit is reported, showing that SnS2 is an indirect bandgap semiconductor over the entire thickness range from bulk to single-layer.
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.