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
Reads0
Chats0
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
Citations
More filters
Journal ArticleDOI
Strain-induced direct–indirect bandgap transition and phonon modulation in monolayer WS2
Yanlong Wang,Yanlong Wang,Chunxiao Cong,Weihuang Yang,Weihuang Yang,Jingzhi Shang,Namphung Peimyoo,Yu Chen,Junyong Kang,Jianpu Wang,Wei Huang,Wei Huang,Ting Yu +12 more
TL;DR: In this article, Liu et al. employed in situ strain photoluminescence (PL) and Raman spectroscopy to exploit the evolutions of the electronic band structure and lattice vibrational responses of chemical vapor deposition (CVD)-grown monolayer tungsten disulphide (WS2) under uniaxial tensile strain.
Journal ArticleDOI
A Photocatalyst–Enzyme Coupled Artificial Photosynthesis System for Solar Energy in Production of Formic Acid from CO2
Rajesh K. Yadav,Jin-Ook Baeg,Gyu Hwan Oh,No Joong Park,Ki Jeong Kong,Jinheung Kim,Dong Won Hwang,Soumya Kanti Biswas +7 more
TL;DR: The synthesis of a novel graphene-based visible light active photocatalyst which covalently bonded the chromophore is reported, such as multianthraquinone substituted porphyrin with the chemically converted graphene as a photoc atalyst of the artificial photosynthesis system for an efficient photosynthetic production of formic acid from CO(2).
Journal ArticleDOI
Electronic structure and chemical bonding of a graphene oxide–sulfur nanocomposite for use in superior performance lithium–sulfur cells
TL;DR: The moderate chemical interactions between sulfur and GO can preserve the intrinsic electronic structure of GO, and on the other hand, immobilize the sulfur on the GO sheets, which should be responsible for the excellent electrochemical performance of the lithium-sulfur cells by using the GO-S nanocomposite as the cathode material.
Journal ArticleDOI
Bandgap opening in oxygen plasma-treated graphene.
Amirhasan Nourbakhsh,Mirco Cantoro,Tom Vosch,Geoffrey Pourtois,Francesca Clemente,Marleen H. van der Veen,Johan Hofkens,Marc Heyns,Stefan De Gendt,Bert F. Sels +9 more
TL;DR: The opening of a bandgap in graphene is explained in terms of functionalization of its pristine lattice with oxygen atoms, that is, on the extent of the bandgap opening upon increased functionalisation density.
References
More filters
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.