Correlating Raman spectral signatures with carrier mobility in epitaxial graphene: a guide to achieving high mobility on the wafer scale.
Joshua A. Robinson,Maxwell Wetherington,Joseph L. Tedesco,Paul M. Campbell,Xiaojun Weng,J.P. Stitt,M. A. Fanton,Eric Frantz,David W. Snyder,Brenda L. VanMil,Glenn G. Jernigan,Rachael L. Myers-Ward,Charles R. Eddy,D. Kurt Gaskill +13 more
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TLDR
There is a direct correlation between carrier mobility and Raman topography of epitaxial graphene (EG) grown on silicon carbide (SiC) and it is shown that carrier mobility depends strongly on the graphene layer stacking.Abstract:
We report a direct correlation between carrier mobility and Raman topography of epitaxial graphene (EG) grown on silicon carbide (SiC). We show the Hall mobility of material on SiC(0001) is highly dependent on thickness and monolayer strain uniformity. Additionally, we achieve high mobility epitaxial graphene (18100 cm(2)/(V s) at room temperature) on SiC(0001) and show that carrier mobility depends strongly on the graphene layer stacking.read more
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Graphene and Graphene Oxide: Synthesis, Properties, and Applications
TL;DR: An overview of the synthesis, properties, and applications of graphene and related materials (primarily, graphite oxide and its colloidal suspensions and materials made from them), from a materials science perspective.
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Chemically derived graphene oxide: towards large-area thin-film electronics and optoelectronics.
Goki Eda,Manishkumar Chhowalla +1 more
TL;DR: The fundamental structure and properties of GO-based thin films are discussed in relation to their potential applications in electronics and optoelectronics.
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Graphene: An Emerging Electronic Material
Nathan O. Weiss,Hailong Zhou,Lei Liao,Yuan Liu,Shan Jiang,Yu Huang,Yu Huang,Xiangfeng Duan,Xiangfeng Duan +8 more
TL;DR: The versatility of graphene-based devices goes beyond conventional transistor circuits and includes flexible and transparent electronics, optoelectronics, sensors, electromechanical systems, and energy technologies.
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Graphene coating makes carbon nanotube aerogels superelastic and resistant to fatigue
TL;DR: It is shown that an inelastic aerogel made of single-walled carbon nanotubes can be transformed into a superelastic material by coating it with between one and five layers of graphene nanoplates, and the graphene-coated aerogels exhibits no change in mechanical properties after more than 1 × 10(6) compressive cycles.
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Raman Spectroscopic Characterization of Graphene
Bo Tang,Hu Guoxin,Hanyang Gao +2 more
TL;DR: In this paper, the intensity of the G band increases with increased graphene layers, and the shape of 2D band evolves into four peaks of bilayer graphene from a single peak of monolayer graphene.
References
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Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
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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
TL;DR: 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.
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Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide
Sasha Stankovich,Dmitriy A. Dikin,Richard D. Piner,Kevin A. Kohlhaas,Alfred Kleinhammes,Yuanyuan Jia,Yue Wu,SonBinh T. Nguyen,Rodney S. Ruoff +8 more
TL;DR: In this paper, a colloidal suspension of exfoliated graphene oxide sheets in water with hydrazine hydrate results in their aggregation and subsequent formation of a high surface area carbon material which consists of thin graphene-based sheets.
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Two-dimensional atomic crystals
Kostya S. Novoselov,Da Jiang,Fred Schedin,Timothy J. Booth,V. V. Khotkevich,Sergey V. Morozov,Andre K. Geim +6 more
TL;DR: By using micromechanical cleavage, a variety of 2D crystals including single layers of boron nitride, graphite, several dichalcogenides, and complex oxides are prepared and studied.
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Large-scale pattern growth of graphene films for stretchable transparent electrodes
Keun Soo Kim,Yue Zhao,Houk Jang,Sang Yoon Lee,Jong Min Kim,Kwang S. Kim,Jong Hyun Ahn,Philip Kim,Philip Kim,Jae-Young Choi,Byung Hee Hong +10 more
TL;DR: The direct synthesis of large-scale graphene films using chemical vapour deposition on thin nickel layers is reported, and two different methods of patterning the films and transferring them to arbitrary substrates are presented, implying that the quality of graphene grown by chemical vapours is as high as mechanically cleaved graphene.