First principles investigation on transport properties of graphene based systems
First principles investigation on transport properties of graphene based systems
... nanoribbons ZTG zero transmission gap Chapter Introduction 1.1 The bottleneck of silicon -based electronics Modern electronics relies on the capabilities of semiconductor components to control electron ... carbon chain has (a) sp connection with carbon chain leads; (b) sp2 connection with carbon ribbon leads (optimized); (c) sp3 connection with capped carbon nanotube leads; (d) sp3 con...
Theoretical investigation on thermal properties of silicon based nanostructures
... THEORETICAL INVESTIGATION ON THERMAL PROPERTIES OF SILICON BASED NANOSTRUCTURES CHEN JIE (M.Sc., Nanjing University) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ... DEPARTMENT OF PHYSICS NATIONAL UNIVERSITY OF SINGAPORE 2011 Dedicated to my wife Chunliu and our parents THEORETICAL INVESTIGATION ON THERMAL PROPERTIES OF SILIC...
Báo cáo " Influence of intradot Coulomb interaction on transport properties of an Aharonov-Bohm interferometer " ppt
... context, Bogdan et al [7] and Walter Hofstetter et al [8] studied the combination of the Kondo effect and the Fano effect How the intradot Coulomb interaction influences the phase coherence of ... Coulomb interactions, are in phase [1-3] and the intradot Coulomb interaction can induce dephasing under an appropriate condition We can express the Hamiltonian for the present s...
First principles study on surface modification of antimony doped tin dioxide nanoparticles
... FIRST PRINCIPLES STUDY ON SURFACE MODIFICATION OF ANTIMONY DOPED TIN DIOXIDE NANOPARTICLES Mong Yu Siang (B.Sc (Hons), NUS) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE DEPARTMENT OF ... Such a method would involve the surface functionalization of nanoparticles 1.2: Introduction to surface modification Surface functionalization of semicond...
Báo cáo hóa học: " Influence of Landau level mixing on the properties of elementary excitations in graphene in strong magnetic field" docx
... interaction leads to mixing of transitions between different pairs of Landau levels, changing the resulting energies of elementary excitations Characteristic energy of Coulomb interaction in magnetic ... Landau level mixing and show how the properties of these excitations change in comparison with the lowest Landau level approximation For magnetoexci...
INVESTIGATION OF ELECTRIC AND THERMOELECTRIC PROPERTIES OF GRAPHENE NANORIBBON
... 1.1.1 Graphene in carbon family 15 1.1.2 Electronic properties of graphene 17 1.1.3 Band structure in graphene 18 1.1.4 Band gap in graphene nanoribbon (GNR) 19 1.2 Thermoelectrical ... Thermoelectrical properties of graphene 21 1.2.1 Seebeck coefficient and the figure of merit ZT 21 1.2.2 Thermoelectrical properties in graphene 23 1.3 Chapter 2.1 Objective and s...
Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx
... composition of the Fe-Pt nanoparticles was controlled by adjusting the current density (corresponding to the applied voltage) When the current density of 15 – 20 mA/cm2, the composition of nanoparticles ... [21] The broad peak on the DSC trace in the FePt nanoparticles suggests that there was no such transition in the FePt nanoparticles upon annealing Th...
Tài liệu Báo cáo Y học: The effects of low pH on the properties of protochlorophyllide oxidoreductase and the organization of prolamellar bodies of maize (Zea mays) pot
... (1993) The effect of cross-linking of the subunits of NADPH -protochlorophyllide oxidoreductase on the aggregational state of protochlorophyllide Photosynthetica 29, 205–218 Wiktorsson, B., Ryberg, ... The effect of the presence of the adenylates on the ability of POR-PChlide640 to undergo photoconversion was checked by comparing the efficiency of photoc...
Báo cáo " Influence of cooling rate on the properties of Fe73.5Si13.5B9Nb3Au1 ribbons " docx
... wheel, the longer path The increasing speed of the wheel make the thickness of ribbons thinner and the ratio between the area and volume of the ribbons that contact with the surface of the wheel ... that the wheel gets heat faster and more than from inside of the ribbon, so the ribbon is cooled faster Therefore, the speed of the wheel is proportiona...
Electronic transport properties of single crystal silicon nanowires fabricated using an atomic force microscope
... scanned over the silicon surface at speed of 0.1– m=s leads to an 0.2–2 nm-thick oxide pattern of width 20 –60 nm The oxide features formed by AFM lithography can be then transferred to the silicon ... supported on an insulating layer (Fig 1) As-doped Unibond J silicon- on-insulator (SOI) samples with an ultra-thin single- crystal silicon top layer (typically 15 –20 nm) we...
Báo cáo khoa học: Protein engineering of pyruvate carboxylase Investigation on the function of acetyl-CoA and the quaternary structure doc
... respectively, and the elution prole was not dependent on the protein concentration (C) and (D) The elution prole of PC-(BC) was markedly dependent on the protein concentration: at the high concentration ... evident from the prole Such a phenomenon Table Eect of 0.1 mM acetyl-CoA on the pyruvate carboxylation of intact PC and on the ATP cleavage reac...
Báo cáo " Effects of the conditions of the microemulsion preparation on the properties of Fe3O4 nanoparticles " pot
... Q in the other microemulsion, upon mixing, they will form precipitate PQ, which will be contained entirely within the aqueous cores of the microemulsions The growth of these particles in microemulsions ... diffusion of solutes from the solution or/and aggregation of other nuclei to their surface until the final size was attained In conventional coprecipitation, size (d) c...
cross plane electronic and thermal transport properties of p type la0.67sr0.33mno3 lamno3 perovskite oxide metal semiconductor superlattices
... the potential of this oxide superlattice approach IV CONCLUSIONS Cross- plane transport in LSMO/LMO superlattices has been presented as a potential route to a p- type thermoelectric material Epitaxial ... see http://jap.aip.org/about/rights _and_ permissions 063714-6 Jha et al J Appl Phys 112, 063714 (2012) FIG (a) Measured in -plane resistivity and (b) extracted cross- pla...
evaluation of shape and size effects on optical properties of zno pigment
... morphology effects of ZnO pigments on their optical properties The synthesis conditions were according to our previous works [18,19] Typical synthesis conditions of ZnO powders synthesized in this ... concentration of zinc nitrate and potassium hydroxide solutions (Molar) Experimental 2.1 Preparation of pigments ZnO samples were prepared by hydrothermal method and us...
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