Download or read book Electronic and Optical Properties of Graphite Related Systems written by Chiun-Yan Lin and published by CRC Press. This book was released on 2020-09-30 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of electronic and optical properties of graphite-related systems. It presents a well-developed and up-to-date theoretical model and addresses important advances in essential properties and diverse quantization phenomena. Key features include various Hamiltonian models, dimension-enriched carbon-related systems, complete and unusual results, detailed comparisons with the experimental measurements, clear physical pictures, and further generalizations to other emergent 2D materials. It also covers potential applications, such as touch-screen panel devices, FETs, supercapacitors, sensors, LEDs, solar cells, photodetectors, and photomodulators.
Download or read book Electronic Properties of Rhombohedral Graphite written by Servet Ozdemir and published by Springer Nature. This book was released on 2021-10-25 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the first systematic electron transport investigation of rhombohedral graphite (RG) films and thus lies at the interface of graphene physics, vdW heterostructure devices and topological matter. Electron transport investigation into the rhombohedral phase of graphite was limited to a few layers of graphene due to the competing hexagonal phase being more abundant. This work reports that in exfoliated natural graphite films, rhombohedral domains of up to 50 layers can be found. In the low energy limit, these domains behave as an N-layer generalisation of graphene. Moreover, being a potential alternative to twisted bilayer graphene systems, RG films show a spontaneous metal-insulator transition, with characteristic symmetry properties that could be described by mean-field theory where superconductivity is also predicted in these low energy bands. A nodal-line semimetal in the bulk limit, RG thin films are a 3D generalisation of the simplest topological insulator model: the Su-Schrieffer-Heeger chain. Similar to the more usual topological insulators, RG films exhibit parallel conduction of bulk states, which undergo three-dimensional quantum transport that reflects bulk topology.
Download or read book Electronic Properties of Rhombohedral Graphite written by Servet Ozdemir and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the first systematic electron transport investigation of rhombohedral graphite (RG) films and thus lies at the interface of graphene physics, vdW heterostructure devices and topological matter. Electron transport investigation into the rhombohedral phase of graphite was limited to a few layers of graphene due to the competing hexagonal phase being more abundant. This work reports that in exfoliated natural graphite films, rhombohedral domains of up to 50 layers can be found. In the low energy limit, these domains behave as an N-layer generalisation of graphene. Moreover, being a potential alternative to twisted bilayer graphene systems, RG films show a spontaneous metal-insulator transition, with characteristic symmetry properties that could be described by mean-field theory where superconductivity is also predicted in these low energy bands. A nodal-line semimetal in the bulk limit, RG thin films are a 3D generalisation of the simplest topological insulator model: the Su-Schrieffer-Heeger chain. Similar to the more usual topological insulators, RG films exhibit parallel conduction of bulk states, which undergo three-dimensional quantum transport that reflects bulk topology.
Download or read book Selected Electronic Properties of Graphite written by Rodney O. Dillon and published by . This book was released on 1974 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Development on Advanced Graphite Materials written by G. Wagoner and published by . This book was released on 1963 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graphite Intercalation Compounds II written by Hartmut Zabel and published by Springer. This book was released on 1992 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graphite Intercalation Compounds and Applications written by Toshiaki Enoki and published by Oxford University Press. This book was released on 2003-03-27 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphite intercalation compounds are a new class of electronic materials that are classified as graphite-based host guest systems. They have specific structural features based on the alternating stacking of graphite and guest intercalate sheets. The electronic structures show two-dimensional metallic properties with a large variety of features including superconductivity. They are also interesting from the point of two-dimensional magnetic systems. This book presents the synthesis, crystal structures, phase transitions, lattice dynamics, electronic structures, electron transport properties, magnetic properties, surface phenomena, and applications of graphite intercalation compounds. The applications covered include batteries, highly conductive graphite fibers, exfoliated graphite and intercalated fullerenes and nanotubes.
Download or read book Electronic Properties of Well Oriented Graphite written by I. L. Spain and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic Properties of Graphite Intercalation Compounds written by John E. Fischer and published by . This book was released on 1977 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic Properties of Graphene Heterostructures with Hexagonal Crystals written by John R. Wallbank and published by Springer. This book was released on 2014-07-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last decade has witnessed the discovery of, and dramatic progress in understanding the physics of graphene and related two-dimensional materials. The development of methods for manufacturing and aligning high-quality two-dimensional crystals has facilitated the creation of a new generation of materials: the heterostructures of graphene with hexagonal crystals, in which the graphene electrons acquire new, qualitatively different properties. This thesis provides a comprehensive theoretical framework in which to understand these heterostructures, based on the tight binding model, perturbation theory, group theory and the concept of the moire superlattice (all of which are elucidated). It explains how graphene heterostructures provide new opportunities for tailoring band structure, such as creating additional Dirac points or opening band gaps and how they manifest themselves in transport measurements, optical absorption spectra and the fractal Hofstadter spectra. Also considered are the heterostructures of bilayer graphene and resonant tunneling in aligned graphene/insulator/graphene devices.
Download or read book Physical Properties of Graphite written by W. N. Reynolds and published by . This book was released on 1968 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic properties of graphite intercalation compounds written by Richard André Wachnik and published by . This book was released on 1982 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic Properties of Graphene Heterostructures with Hexagonal Crystals written by John Wallbank and published by . This book was released on 2014-07-31 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamental Electronic Properties of Donor Type Graphite Intercalated Compounds written by S. Rabii and published by . This book was released on 1984 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphite intercalation compounds are a large family of quasi-two dimensional synthetic metals. Fundamental interest centers on their unusual crystal structures and their effects on electronic properties. Practical applications are envisaged as lightweight conductors of electricity. The goals of this program are to understand the electronic structure of donor-type compounds, with a view toward obtaining detailed correlations between chemical and physical variables. Emphasis is placed on the one-electron spectrum, transport and optical properties and charge distributions. Synthetic methods are developed to provide high-quality specimens for a variety of physical measurements. Band theoretical techniques are applied to develop models for the electronic structure. Iteration between theory and experiment leads to more sophisticated models.
Download or read book Tuning the Electronic Properties of Graphite for Enhanced and Sustained Electron Transfer Kinetics Characterization Properties and Applications written by Okechukwu C. Nwamba and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: On thermal treatment, eight different graphite materials became resistant to air aging for at least nine weeks compared to the usual time of hours to a few days when assayed in 1mM ferri-ferrocyanide solution. In addition, resistance to aging was found for at least seven days, when immersed in 1mM ferri-ferrocyanide solution compared with the frequently reported few minutes to hours. Experimental results confirm that with heat treatment, HOPG-ZYH, graphite rods, pyrolytic graphites, graphite felts, and natural and artificial graphites undergo structural reorganization which leads to the restructuring of their electronic nature. It is this electronic restructuring that enhances and sustains their electrochemical properties. The extent of this reorganization is dependent on the initial disordered state, which in turn is important to the final structural and electronic conditions. Our results strongly suggest that the primary factor enhancing the electronic response of heat-treated materials is from an overall higher density of states localized on delocalizing Ï0 bonds compared to their controls. This structural reorganization of the graphites also supports a degree of crystallinity along the lattice sites that enable carrier hopping irrespective of adventitious oxygen-containing and hydrocarbon moieties that is synonymous with aging induced sluggish electron transfer kinetics. The attributes of this electronic structure demonstrate a strongly correlated system which exhibit a non-perturbative behavior. A one-dimensional Hubbard model is applied to describe this behavior that explains the surface-to-electronic chemistry of treated graphites by addressing both their enhanced electrochemical performance and their depressed aging effects. Additionally, these thermally treated graphites were used as support systems for the growth of Prussian Blue nano particles. The PBNP doubled the capacitance of the high surface area graphite felt; a property that lends these PBNP graphite felts for, amongst other things, ion-sieving, energy storage and conversion purposes. Since, increased electron transfer kinetics make materials more prone to corrosion, both the structure and corrosion resistance of the treated and pristine graphites were performed. The data collated suggest that the thermally treated graphites, with increased electron transfer kinetics, had similar corrosion resistance properties to the pristine and their work functions were no much different. Yet, the charge transfer parameter of the treated pyrolytic graphites was some three order of magnitude less to the pristine. The results suggest that a correlated electronic structure with enhanced quantum tunneling of electrons through the graphite surfaces, irrespective of surface functional groups or even edges, was responsible for the corrosion resistant nature of the treated graphites.
Download or read book Electronic Properties of Graphene and Other Carbon based Hybrid Materials for Flexible Electronics written by and published by . This book was released on 2014 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural and Electronic Properties of Pristine and Intercalated Highly Ordered Graphite Fibers written by Trieu C. Chieu and published by . This book was released on 1983 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
