Carrier Statistics and Quantum Capacitance Models of Graphene Nanoscroll
نویسندگان
چکیده
منابع مشابه
Quantum capacitance and density of states of graphene
We report capacitance measurements in top-gated graphene sheets as a function of charge carrier density. A measurement method using an LC-circuit provides high sensitivity to small capacitance changes and hence allows the observation of the quantum part of the capacitance. The extracted density of states has a finite value of 1× 1017m−2 eV−1 in the vicinity of the Dirac point, which is in contr...
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R. Reiter1,∗, U. Derra, S. Birner, B. Terrés, F. Libisch, J. Burgdörfer and C. Stampfer 1 Institute for Theoretical Physics, Vienna University of Technology, 1040 Wien, Austria, EU 2 JARA-FIT and II. Institute of Physics, RWTH Aachen University, 52074 Aachen, Germany, EU 3 Walter Schottky Institute, Physik-Department, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany 4 D...
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Capacitance measurements provide a powerful means of probing the density of states. The technique has proved particularly successful in studying 2D electron systems, revealing a number of interesting many-body effects. Here, we use large-area high-quality graphene capacitors to study behavior of the density of states in this material in zero and high magnetic fields. Clear renormalization of th...
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چکیده: فرض کنید که تابعی از اپسیلون یک مجموع نامتناهی از احتمالات موزون مربوط به مجموع های جزئی براساس یک دنباله از متغیرهای تصادفی مستقل و همتوزیع باشد، و همچنین فرض کنید توابعی مانند g و h وجود دارند که هرگاه امید ریاضی توان دوم x متناهی و امیدریاضی x صفر باشد، در این صورت می توان حد حاصلضرب این توابع را بصورت تابعی از امید ریاضی توان دوم x نوشت. حالت عکس نیز برقرار است. همچنین ما با استفاده...
15 صفحه اولCapacitance Properties of Electrochemically Synthesised Polybithiophene-Graphene Exfoliated Composite Films
The graphene (GR) has attracted intensive interest due to its two-dimensional and unique physical properties. In the present study, the graphene sheets were synthesized by electrochemical exfoliation of graphite in sulfuric acid solution. The polybithiophene-graphene (PbTh-GR) composite films deposited onto indium tin oxide substrate (ITO/PbTh-GR) have been prepared by the incorporation of ...
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ژورنال
عنوان ژورنال: Journal of Nanomaterials
سال: 2014
ISSN: 1687-4110,1687-4129
DOI: 10.1155/2014/762143