Download or read book Thermoelectricity and Heat Transport in Graphene and Other 2D Nanomaterials written by Serhii Shafraniuk and published by Elsevier. This book was released on 2017-07-15 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermoelectricity and Heat Transport in Graphene and Other 2D Nanomaterials describes thermoelectric phenomena and thermal transport in graphene and other 2-dimentional nanomaterials and devices. Graphene, which is an example of an atomic monolayered material, has become the most important growth area in materials science research, stimulating an interest in other atomic monolayeric materials. The book analyses flow management, measurement of the local temperature at the nanoscale level and thermoelectric transducers, with reference to both graphene and other 2D nanomaterials. The book covers in detail the mechanisms of thermoelectricity, thermal transport, interface phenomena, quantum dots, non-equilibrium states, scattering and dissipation, as well as coherent transport in low-dimensional junctions in graphene and its allotropes, transition metal dichalcogenides and boron nitride. This book aims to show readers how to improve thermoelectric transducer efficiency in graphene and other nanomaterials. The book describes basic ingredients of such activity, allowing readers to gain a greater understanding of fundamental issues related to the heat transport and the thermoelectric phenomena of nanomaterials. It contains a thorough analysis and comparison between theory and experiments, complemented with a variety of practical examples. Shows readers how to improve the efficiency of heat transfer in graphene and other nanomaterials with analysis of different methodologies Includes fundamental information on the thermoelectric properties of graphene and other atomic monolayers, providing a valuable reference source for materials scientists and engineers Covers the important models of thermoelectric phenomena and thermal transport in the 2D nanomaterials and nanodevices, allowing readers to gain a greater understanding of the factors behind the efficiency of heat transport in a variety of nanomaterials

Download or read book Graphene and 2D Materials in Heat Transfer written by Mohammad Khalid and published by Elsevier. This book was released on 2022-08-01 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat transfer is a major engineering challenge that has implications in several areas including space, energy, transportation, manufacturing, and medicine. Graphene and other 2D materials have outstanding thermo-physical properties. As a result, these materials are being exploited in various applications. Although several reports have been published on fundamental heat transfer aspects of such materials, the topic remains challenging to understand for many who are new to it. Graphene and 2D Materials in Heat Transfer: Fundamentals and Applications aims to provide readers with the most recent information on the synthesis and applications of graphene in heat transfer. Furthermore, mechanical and thermal properties of 2D materials, solid-liquid interface phonon transfer at the molecular level, methods and observations of transport phenomena in nano-micro domains will be addressed. The book also offers detailed coverage of the emerging applications of 2D nanofluids and nanolubricants as alternatives to conventional heat transfer fluids The book explores applications in microchannel heat sinks, micro heat exchangers, and micro heat pipes, molecular dynamics (MD) simulations for heat transport problems related to 2D materials and applications. In addition, convective heat transfer approaches for 2D materials and nanocomposites are also addressed. This is an important reference source for materials scientists and engineers who want to learn more about how graphene and other classes of 2D materials are being used as heat transfer agents. Provides readers with a single information source to learn about how graphene and other 2D materials are being used as heat transfer agents Explains why the properties of graphene make this an effective materials for heat transfer Outlines the major challenges of using graphene as a heat transfer agent

Download or read book Thermal Transport in Graphene based Nanostructures and Other Two dimensional Materials written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Transport in Low Dimensions written by Stefano Lepri and published by Springer. This book was released on 2016-04-07 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding non-equilibrium properties of classical and quantum many-particle systems is one of the goals of contemporary statistical mechanics. Besides its own interest for the theoretical foundations of irreversible thermodynamics(e.g. of the Fourier's law of heat conduction), this topic is also relevant to develop innovative ideas for nanoscale thermal management with possible future applications to nanotechnologies and effective energetic resources. The first part of the volume (Chapters 1-6) describes the basic models, the phenomenology and the various theoretical approaches to understand heat transport in low-dimensional lattices (1D e 2D). The methods described will include equilibrium and nonequilibrium molecular dynamics simulations, hydrodynamic and kinetic approaches and the solution of stochastic models. The second part (Chapters 7-10) deals with applications to nano and microscale heat transfer, as for instance phononic transport in carbon-based nanomaterials, including the prominent case of nanotubes and graphene. Possible future developments on heat flow control and thermoelectric energy conversion will be outlined. This volume aims at being the first step for graduate students and researchers entering the field as well as a reference for the community of scientists that, from different backgrounds (theoretical physics, mathematics, material sciences and engineering), has grown in the recent years around those themes.

Download or read book 2D Monoelements written by Inamuddin and published by John Wiley & Sons. This book was released on 2020-12-30 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2D Monoelements: Properties and Applications explores the challenges, research progress and future developments of the basic idea of two-dimensional monoelements, classifications, and application in field-effect transistors for sensing and biosensing. The thematic topics include investigations such as: Recent advances in phosphorene The diverse properties of two-dimensional antimonene, of graphene and its derivatives The molecular docking simulation study used to analyze the binding mechanisms of graphene oxide as a cancer drug carrier Metal-organic frameworks (MOFs)-derived carbon (graphene and carbon nanotubes) and MOF-carbon composite materials, with a special emphasis on the use of these nanostructures for energy storage devices (supercapacitors) Two-dimensional monoelements classification like graphene application in field-effect transistors for sensing and biosensing Graphene-based ternary materials as a supercapacitor electrode Rise of silicene and its applications in gas sensing

Download or read book Thermoelectric Transport and Energy Conversion Using Novel 2D Materials written by Luke J. Wirth and published by . This book was released on 2016 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials hold great promise for applications in thermal management and thermoelectric power generation. Defects in these are important as they are generally inevitably introduced during fabrication or intentionally engineered to control the properties of the nanomaterials. Here, we investigate how phonon-contributed thermal conductance in narrow graphene, boron nitride (BN), and silicene nanoribbons (NRs), responds to the presence of a vacancy defect and the corresponding geometric distortion, from first principles using the non-equilibrium Green's function method. Analyses are made of the geometries, phonon conductance coefficients, and local densities of states (LDOS) of pristine and defected nanoribbons. It is found that hydrogen absences produce similar reductions in thermal conductance in planar graphene and BN NRs with greater reductions in buckled silicene NRs. Vacancies of larger atoms affect all systems similarly, causing greater reductions than hydrogen absences. Emerging flexible and stiff scattering centers, depending on bond strengths, are shown to cause thermal conductance reduction by changing nearby LDOSs in defected structures relative to pristine ones. This knowledge suggests that inferences on unknown thermal properties of novel defected materials can be made based on understanding how thermal transport behaves in their analogues and how bond characteristics differ between systems under consideration. The thermal conductance contributed by phonons is often a limiting factor to the overall suitability of a material for use in thermoelectric power generation, wherein a voltage is generated in a material by a temperature gradient. The thermoelectric figure of merit (ZT) assesses this suitability, in part based on a ratio of electrical conductance to thermal conductance. These two properties can be decoupled in low-dimensional structures like NRs, with lower thermal conductances generally found in narrower materials. Here, ZT is analyzed in graphene, BN, and silicene nanoribbons of two different widths with engineered edges that are designed to increase the ratio of edge length to NR length. This could conceivably be synthesized by either top-down or bottom-up methods. Analyses are made of how width and material change the maximum ZT attainable by controlling the chemical potential of each system, how these maximum ZTs differ in each system as a result of p- or n- type change to chemical potential, how full-width half-maximum values of ZT peaks behave, and how the different factors of ZT affect its final value in these systems. A very high ZT of 6.26 is reported near the bandgap in the narrow chevron silicene NR at room temperature, and a room temperature ZT greater than 3 is also found in the narrow BN NR, suggesting that edge-engineered NRs offer high promise for thermoelectric applications and may be suitable for emissions-free electricity generation from waste heat sources.

Download or read book Graphene Bioelectronics written by Ashutosh Tiwari and published by Elsevier. This book was released on 2017-11-22 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene Bioelectronics covers the expending field of graphene biomaterials, a wide span of biotechnological breakthroughs, opportunities, possibilities and challenges. It is the first book that focuses entirely on graphene bioelectronics, covering the miniaturization of bioelectrode materials, bioelectrode interfaces, high-throughput biosensing platforms, and systemic approaches for the development of electrochemical biosensors and bioelectronics for biomedical and energy applications. The book also showcases key applications, including advanced security, forensics and environmental monitoring. Thus, the evolution of these scientific areas demands innovations in crosscutting disciplines, starting from fabrication to application. This book is an important reference resource for researchers and technologists in graphene bioelectronics—particularly those working in the area of harvest energy biotechnology—employing state-of-the-art bioelectrode materials techniques. Offers a comprehensive overview of state-of-art research on graphene bioelectronics and their potential applications Provides innovative fabrication strategies and utilization methodologies, which are frequently adopted in the graphene bioelectronics community Shows how graphene can be used to make more effective energy harvesting devices

Download or read book Two dimensional Materials written by Pramoda Kumar Nayak and published by BoD – Books on Demand. This book was released on 2016-08-31 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are only a few discoveries and new technologies in materials science that have the potential to dramatically alter and revolutionize our material world. Discovery of two-dimensional (2D) materials, the thinnest form of materials to ever occur in nature, is one of them. After isolation of graphene from graphite in 2004, a whole other class of atomically thin materials, dominated by surface effects and showing completely unexpected and extraordinary properties, has been created. This book provides a comprehensive view and state-of-the-art knowledge about 2D materials such as graphene, hexagonal boron nitride (h-BN), transition metal dichalcogenides (TMD) and so on. It consists of 11 chapters contributed by a team of experts in this exciting field and provides latest synthesis techniques of 2D materials, characterization and their potential applications in energy conservation, electronics, optoelectronics and biotechnology.

Download or read book A First principles Investigation of the Transition Between Two and Three dimensional Thermal Transport in Graphene and Graphite written by Patrick Strongman and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-dimensional materials have become a popular research area over the past two decades because of their unique physical properties. The low dimensionality of these materials leads to interesting, and useful, transport properties such as thickness-dependent band gaps and high electrical and thermal conductivity. These materials have applications in nanoelectronics, optoelectronics, and thermoelectric energy generation, the performance of which depends sensitively on understanding and controlling how heat transport occurs. Most low dimensional materials can be derived by isolating them from their bulk counterparts, which are often comprised of stacks of the two-dimensional layers that are weakly bound together. These layered bulk materials often maintain some of the two-dimensional characteristics of their monolayer form because of the weak interlayer bonds. One common example of such a "quasi-2D" material is graphite, which is made of layered carbon sheets, i.e. graphene. When going from graphite to graphene the room-temperature in-plane thermal conductivity varies from approx. 2000 W/m K to 5800 W/m K, respectively. Both values are exceptionally high, but there is still a large difference between the two. Nevertheless, the majority of studies focus either on the bulk or low-dimensional versions of materials, with little focus on how the transition from 3D to 2D influences the microscopic properties and transport characteristics. The purpose of this study was to explain how the thermal transport properties of layered materials transition between two and three dimensions. Graphene and graphite were used as simple materials to model this transition. The thermal transport properties were calculated from first-principles using density functional theory (DFT) and iterative solutions to the Boltzmann transport equation (BTE). The transition between two and three dimensions was modelled by systematically moving the layers of graphite apart from each other until they were essentially isolated graphene sheets. The converged $\kappa$ values of the limiting cases of graphite and graphene agree with experimental measurements and previous calculations, with the stretched cases showing a monotonically increasing thermal conductivity from $\kappa_{\text{graphite}}$ to $\kappa_{\text{graphene}}$. Surprisingly, the largest variation in the thermal transport properties resulted from changes in the phonon dispersion. This is contrary to the previous belief that the difference in $\kappa$ resulted from certain three-phonon selection rules in graphene, which reduce the scattering probability, and do not apply to graphite. The selection rules appear to mostly still apply to graphite and the stretched graphite cases, indicating that the primary mechanism resulting in the differences between $\kappa_{\text{graphene}}$ and $\kappa_{\text{graphite}}$ was the shape of the phonon dispersion, and a corresponding shift in the phonon DOS. This type of analysis could be applied to other layered materials in the future to identify materials with the potential to be exceptional thermal conductors.

Download or read book Electronic and Thermal Properties of Graphene written by Kyong Yop Rhee and published by Mdpi AG. This book was released on 2020-07 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue includes recent research articles and extensive reviews on graphene-based next-generation electronics, bringing together perspectives from different branches of science and engineering. The papers presented in this volume cover experimental, computational and theoretical aspects of the electrical and thermal properties of graphene and its applications in batteries, electrodes, sensors and ferromagnetism. In addition, this Special Issue covers many important state-of-the-art technologies and methodologies regarding the synthesis, fabrication, characterization and applications of graphene-based nanocomposites.

Download or read book Thermal Transport in Novel Three Dimensional Carbon Nanostructures written by Jungkyu Park and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-dimensional (3D) nanostructures comprised of one-dimensional (1D) and/or two-dimensional (2D) nanomaterials have several advantages over their base nanomaterials. Due to their dimensionally confined structures, for example, 1D carbon nanotubes (CNTs) and 2D graphene exhibit strong direction-dependent thermal transport properties with extremely inefficient cross-plane properties. However, 3D carbon nanostructures such as pillared graphene structures (PGS) are expected to be efficient in both in-plane and cross-plane thermal transport. The aim of this thesis is providing the detailed understanding of thermal transport in 3D carbon nanostructures comprised of CNTs and graphene. Reverse non-equilibrium molecular dynamics simulations were used to show that PGS and CNT networks can have both high in-plane and high cross-plane thermal conductivities comparable to their base nanomaterials, i.e. CNTs and graphene, and also to show that their thermal properties are tunable through altering their architectures. The results indicate that thermal resistances at CNT-graphene junctions result from the combined effect of phonon scattering at the junctions with distorted carbon-carbon bonds and the change in dimensionality of the phonon transport medium as phonons propagate from CNTs (1D) to graphene (2D) and then again to CNT. Moreover, wave packet analysis on SWCNT networks revealed that SWCNT-SWCNT junctions with lager diameter transmit thermal energy more efficiently than the junctions with smaller diameter, and also revealed that SWCNT-SWCNT T-junctions are more efficient in thermal energy transmission than X-junctions. A new experimental method for thermal conductivity measurements in 2D nanosheets was developed. The new method ensures a 1D heat conduction in a 2D sample by creating a spatially uniform temperature profile on the heated side of the sample, and thus improves the accuracy of the measurement in a 2D structure. A MEMS device that can measure the thermal conductivity of a graphene layer using this method is currently being fabricated for the validation of the method.

Download or read book Nano Microscale Heat Transfer written by Zhuomin M. Zhang and published by Springer Nature. This book was released on 2020-06-23 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: This substantially updated and augmented second edition adds over 200 pages of text covering and an array of newer developments in nanoscale thermal transport. In Nano/Microscale Heat Transfer, 2nd edition, Dr. Zhang expands his classroom-proven text to incorporate thermal conductivity spectroscopy, time-domain and frequency-domain thermoreflectance techniques, quantum size effect on specific heat, coherent phonon, minimum thermal conductivity, interface thermal conductance, thermal interface materials, 2D sheet materials and their unique thermal properties, soft materials, first-principles simulation, hyperbolic metamaterials, magnetic polaritons, and new near-field radiation experiments and numerical simulations. Informed by over 12 years use, the author’s research experience, and feedback from teaching faculty, the book has been reorganized in many sections and enriched with more examples and homework problems. Solutions for selected problems are also available to qualified faculty via a password-protected website.• Substantially updates and augments the widely adopted original edition, adding over 200 pages and many new illustrations;• Incorporates student and faculty feedback from a decade of classroom use;• Elucidates concepts explained with many examples and illustrations;• Supports student application of theory with 300 homework problems;• Maximizes reader understanding of micro/nanoscale thermophysical properties and processes and how to apply them to thermal science and engineering;• Features MATLAB codes for working with size and temperature effects on thermal conductivity, specific heat of nanostructures, thin-film optics, RCWA, and near-field radiation.

Download or read book Introduction to Graphene Based Nanomaterials written by Luis E. F. Foa Torres and published by Cambridge University Press. This book was released on 2020-01-30 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the electrical and transport properties of graphene and other two-dimensional nanomaterials.

Download or read book Nanoscale Thermoelectrics written by Xiaodong Wang and published by Springer Science & Business Media. This book was released on 2013-11-18 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the efficient utilization of energy resources and the minimization of environmental damage, thermoelectric materials can play an important role by converting waste heat into electricity directly. Nanostructured thermoelectric materials have received much attention recently due to the potential for enhanced properties associated with size effects and quantum confinement. Nanoscale Thermoelectrics describes the theory underlying these phenomena, as well as various thermoelectric materials and nanostructures such as carbon nanotubes, SiGe nanowires, and graphene nanoribbons. Chapters written by leading scientists throughout the world are intended to create a fundamental bridge between thermoelectrics and nanotechnology, and to stimulate readers' interest in developing new types of thermoelectric materials and devices for power generation and other applications. Nanoscale Thermoelectrics is both a comprehensive introduction to the field and a guide to further research, and can be recommended for Physics, Electrical Engineering, and Materials Science departments.

Download or read book 2D Nanomaterials for Energy and Environmental Sustainability written by Zeba Khanam and published by Springer Nature. This book was released on 2022-02-01 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents cutting-edge research, recent breakthroughs, and unresolved challenges associated with 2D nanomaterials to combat energy and environmental issues. The book discusses the state-of-the-art design and innovations engaged to novel 2D nanomaterials, viz. Transition metal compounds (TMDs, TMOs, TMHs), MXenes, elemental 2D analogs (silicene, phosphorene, arsenene, etc.), Metal-organic frameworks (MOFs), etc. It presents the latest trends on top-down and bottom-up synthesis approaches and properties followed by the critical status and progress of these 2D nanomaterials in the field of energy and environment. The topics cover wide spectrum of 2D nanomaterials applications including energy storage/conversion, air/water/soil remediation, adsorption, photocatalytic degradation, desalination and membrane filtration, detection and sensing, drug delivery systems, and nano-encapsulated agro-formulations. The subsequent section includes a comprehensive account on the safety risk assessment of 2D nanomaterials towards the ecosystem and human health. This book will be beneficial for beginners, researchers, and professionals from diverse fields interested in 2D nanomaterials for energy and environmental sustainability.

Download or read book Calculation and Design of Two dimensional Thermoelectric and Piezoelectric Materials written by San-Dong Guo and published by Frontiers Media SA. This book was released on 2023-08-25 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fascinating two-dimensional (2D) materials are being unconsciously applied in various fields from science to engineering, which is benefited from the glamorous physical and chemical properties of mechanics, optics, electronics, and magnetism. The representative 2D thermoelectric/piezoelectric materials can directly convert thermal/mechanical energy into electrical energy, which can resolve the energy issues and avoid further environmental deterioration. The thermoelectric or piezoelectric properties of various 2D materials, such as graphene, hexagonal boron nitride, black phosphorus, transition metal dichalcogenides (TMDs), arsenene, metal carbides and nitrides (MXenes), and so on, have been investigated in detail. Although tremendous progress has been achieved in the past few years, these properties still need to be improved for their practical application by designing new 2D materials, strain engineering, chemical functionalization, etc. In addition to this, in 2D materials, there are many other novel physical properties, such as magnetism, topology, valley, and so on. The combination of thermoelectricity/piezoelectricity with other unique properties may lead to novel device applications or scientific breakthroughs in new physics. Overall, the emergence of 2D thermoelectric and piezoelectric materials has expanded energy conversion research dramatically. By combing this new device concept with the novel 2D materials, original devices should have potential applications in energy harvesting.

Download or read book Conduction of Heat in Solids written by Horatio Scott Carslaw and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: