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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PatentDOI
Substrate-free gas-phase synthesis of graphene sheets
TL;DR: It is proved that graphene can be created without three-dimensional materials or substrates and demonstrate a possible avenue to the large-scale synthesis of graphene.
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Low-temperature photocarrier dynamics in monolayer MoS2
TL;DR: In this paper, the authors report on scanning Raman and on temperature-dependent photoluminescence measurements on single-layer MoS2 flakes prepared by exfoliation.
Journal ArticleDOI
Raman Studies of Monolayer Graphene: The Substrate Effect
Yingying Wang,Zhenhua Ni,Ting Yu,Zexiang Shen,Haomin Wang,Yihong Wu,Wei Chen,Andrew T. S. Wee +7 more
TL;DR: In this article, the effect of substrate on the atomic/electronic structures of monolayer graphene is investigated and it is shown that the Raman features are independent of the substrate used.
Journal ArticleDOI
Covalent functionalization of chemically converted graphene sheets via silane and its reinforcement
Huafeng Yang,Fenghua Li,Changsheng Shan,Dongxue Han,Dongxue Han,Qixian Zhang,Li Niu,Li Niu,Ari Ivaska +8 more
TL;DR: Polydisperse, functionalized, chemically converted graphene (f-CCG) nanosheets, which can be homogeneously distributed into water, ethanol, DMF, DMSO and 3-aminopropyltriethoxysilane (APTS), were obtained via facile covalent functionalization with APTS.
Journal ArticleDOI
Epitaxial graphene on Cu(111).
TL;DR: Results reveal that reducing the density of domain boundaries is one challenge of growing high-quality graphene on copper.
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.