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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FeCl3 based Few-Layer Graphene Intercalation Compounds: Single Linear Dispersion Electronic Band Structure and Strong Charge Transfer Doping
Da Zhan,Li Sun,Zhenhua Ni,Lei Liu,Xiaofeng Fan,Yingying Wang,Ting Yu,Yeng Ming Lam,Wei Huang,Zexiang Shen +9 more
TL;DR: In this article, the Raman G peak of a few-layer graphene intercalation compound (FLGIC) is shown to have a Lorentzian 2D peak, similar to that of single layer graphene, indicating the loss of electronic coupling between adjacent graphene layers.
Journal ArticleDOI
Graphene mode-locked femtosecond laser at 2 μm wavelength
Jan Ma,Guoqiang Xie,Peng Lv,Wenlan Gao,Peng Yuan,Liejia Qian,Haohai Yu,H. J. Zhang,Jun Wang,Dingyuan Tang +9 more
TL;DR: It is experimentally demonstrated a passively mode-locked femtosecond laser by using a graphene-based saturable absorber mirror (graphene SAM) in the spectral region of 2 μm.
Journal ArticleDOI
Reduced graphene oxide as efficient and stable hole transporting material in mesoscopic perovskite solar cells
Alessandro Lorenzo Palma,Lucio Cinà,Sara Pescetelli,Antonio Agresti,Michele Raggio,Roberto Paolesse,Francesco Bonaccorso,Aldo Di Carlo +7 more
TL;DR: In this paper, reduced graphene oxide (RGO) was used as an anti-recombination layer to reduce the charge carriers recombination pathways and increase the lifetime of perovskite solar cells.
Journal ArticleDOI
Challenges in application of Raman spectroscopy to biology and materials
TL;DR: In this paper, the authors present the challenges in unravelling the molecule-specific Raman spectral signatures of different biomolecules like proteins, nucleic acids, lipids and carbohydrates based on the review of their work and the current trends in these areas.
Journal ArticleDOI
Growth Mechanism and Controlled Synthesis of AB-Stacked Bilayer Graphene on Cu-Ni Alloy Foils
Yaping Wu,Harry Chou,Hengxing Ji,Qingzhi Wu,Shanshan Chen,Wei Jiang,Yufeng Hao,Junyong Kang,Yujie Ren,Richard D. Piner,Rodney S. Ruoff +10 more
TL;DR: It was found that higher temperature, longer exposure time, higher rate of bulk diffusion for (12)C vs(13)C, and slower cooling rate all produced higher graphene coverage on this type of Cu-Ni alloy foil.
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.