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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Bridging the Gap between Reality and Ideal in Chemical Vapor Deposition Growth of Graphene
TL;DR: This Review will emphasize the recent advances and strategies in CVD production of graphene for settling issues to bridge the giant gap, and discusses the strategies for perfecting the quality of CVD-derived graphene with regard to domain size, cleanness, flatness, growth rate, scalability, and direct growth of graphene on functional substrate.
Journal ArticleDOI
High Surface Area, sp(2)-Cross-Linked Three-Dimensional Graphene Monoliths.
Marcus A. Worsley,Tammy Y. Olson,Jonathan R. I. Lee,Trevor M. Willey,Michael H. Nielsen,Sarah Roberts,Peter J. Pauzauskie,Juergen Biener,Joe H. Satcher,Theodore F. Baumann +9 more
TL;DR: The use of sol-gel chemistry is reported to introduce chemical bonding between the graphene sheets and control the bulk properties of graphene-based aerogels, representing a significant step toward realizing the properties of individual graphene sheets in a 3D assembly with surface areas approaching the theoretical value of an individual sheet.
Journal ArticleDOI
Single-Gate Bandgap Opening of Bilayer Graphene by Dual Molecular Doping
Jaesung Park,Sae Byeok Jo,Young-Jun Yu,Young-Jun Yu,Youngsoo Kim,Jae Won Yang,Wi Hyoung Lee,Hyun Ho Kim,Byung Hee Hong,Byung Hee Hong,Philip Kim,Kilwon Cho,Kwang S. Kim +12 more
TL;DR: This work unambiguously proves that it is possible to open a bandgap with two molecular dopants (F4-TCNQ and NH2 -functionalized self-assembled monolayers (SAMs) even in a single-gate device structure.
Journal ArticleDOI
Raman imaging of doping domains in graphene on SiO2
Christoph Stampfer,F. Molitor,D. Graf,Klaus Ensslin,A. Jungen,Christofer Hierold,Ludger Wirtz +6 more
TL;DR: In this paper, spatially resolved Raman images of the G and 2D lines of single-layer graphene flakes were used to identify the position of the 2D line as a function of charging up to ∣n∣≈4×1012cm−2.
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.