Carbon Nanotube Based Mems Energy Storage Devices
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Carbon Nanotube Based Mems Energy Storage Devices
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Author : Yingqi Jiang
language : en
Publisher:
Release Date : 2011
Carbon Nanotube Based Mems Energy Storage Devices written by Yingqi Jiang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Carbon nanotube (CNT) forests have been utilized as electrodes in supercapacitors in this work for energy storage applications. High surface area to volume ratio, good electrical conductivity, and low contact resistance to a bottom metal electrode make CNT forests attractive as electrodes in supercapacitors. Several approaches have been investigated to improve the performances such as configurations, power and energy density of CNT-based supercapacitors, including the single layer architecture by utilizing interdigitated finger electrodes, pseudo capacitors based on electroplated nickel nanoparticles, ultra-long and densified CNT forests electrodes. Vertically aligned CNT forests have been synthesized using the thermal CVD process and their sheet and contact resistances have been characterized with four distinct methods: (1) the transfer length method (TLM), (2) the contact chain method, (3) the Kelvin method, and (4) the four point probe method. Experimental results show that CNT forests of 100μm in height and 100μm in width have a sheet resistance of about 100ohm/sq;. The specific contact resistance to a current collector is 5×10E4 ohm.μm2. Consistent results from these methods have been observed and less than 0.9% resistance deviations were measured after two months of open-air storage. In the first development stage, planar supercapacitors based on CNT forests electrodes with interdigitated finger shapes have been fabricated using a combination of Mo/Al/Fe metal stack layers to achieve dense growth of CNT with low resistance. The specific capacitances of the prototype electrodes were measured to be about 1000 times higher than those made of flat metal electrodes. Furthermore, charging/discharging experiments show over 92% energy storage efficiency and robust cycling stability. In the second development stage, CNT forests with embedded nickel nanoparticles have been used as electrodes for pseudo supercapacitors. A vacuum infiltration process is used in the electroplating process for the uniform deposition of 30-200nm in diameter nickel nanoparticles within the 80μm-high CNT forests. The measured specific capacitances are up to one order of magnitude higher than those CNT forests electrodes without nickel nanoparticles. No visual morphologic change was observed on nanoparticles after 1000 cycles of cyclic voltammetry tests. In the third development stage, ultra long CNT forests were synthesized using a water-assisted CVD process. Experimental results confirmed the capacitance increments were linearly proportion to the height increase of CNT forests with good long term stability. In the fourth development stage, a two-stage, self-aligned liquid densification process has applied on CNT forest to shrink the volume of CNT forests electrodes. By combining both mechanical bending and liquid densification, the height of CNT forest shrunk from 320μm to 21μm. Experimental results show self-aligned and continuous CNT films with preserved bottom contacts to the conductive metal layer. These densified CNT forests electrodes had similar total capacitances before and after the densification process while the volumetric specific capacitance increased from 1.07F/cm3 to 10.7F/cm3 because of the volume reductions.
Carbon Based Electronic Devices
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Author : Alberto Tagliaferro
language : en
Publisher: MDPI
Release Date : 2020-02-14
Carbon Based Electronic Devices written by Alberto Tagliaferro and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-14 with Technology & Engineering categories.
For more than 50 years, silicon has dominated the electronics industry. However, this growth will come to an end, due to resources limitations. Thus, research developments need to focus to alternative materials, with higher performance and better functionality. Current research achievements have indicated that carbon is one of the promising candidates for its exploitation in the electronics industry. Whereas the physical properties of graphite and diamond have been investigated for many years, the potential for electronic applications of other allotropes of carbon (fullerenes, carbon nanotubes, carbon nanofibres, carbon films, carbon balls and beads, carbon fibers, etc), has only been appreciated relatively recently. Carbon-based materials offer a number of exciting possibilities for new applications of electronic devices, due to their unique thermal and electrical properties. However, the success of carbon-based electronics depends on the rapid progress of the fabrication, doping and manipulation techniques. In this Special Issue, we focus on both insights and advancements in carbon-based electronics. We will also cover various topics ranging from synthesis, functionalisation, and characterisation of carbon-based materials, for their use in electronic devices, including advanced manufacturing techniques, such as 3D printing, ink-jet printing, spray-gun technique, etc.
From Mems To Bio Mems And Bio Nems
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Author : Marc J. Madou
language : en
Publisher: CRC Press
Release Date : 2011-06-13
From Mems To Bio Mems And Bio Nems written by Marc J. Madou and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-13 with Technology & Engineering categories.
From MEMS to Bio-MEMS and Bio-NEMS: Manufacturing Techniques and Applications details manufacturing techniques applicable to bionanotechnology. After reviewing MEMS techniques, materials, and modeling, the author covers nanofabrication, genetically engineered proteins, artificial cells, nanochemistry, and self-assembly. He also discusses scaling laws in MEMS and NEMS, actuators, fluidics, and power and brains in miniature devices. He concludes with coverage of various MEMS and NEMS applications. Fully illustrated in color, the text contains end-of-chapter problems, worked examples, extensive references for further reading, and an extensive glossary of terms. Details the Nanotechnology, Biology, and Manufacturing Techniques Applicable to Bionanotechnology Topics include: Nonlithography manufacturing techniques with lithography-based methods Nature as an engineering guide and contrasts top-down and bottom-up approaches Packaging, assembly, and self-assembly from ICs to DNA and biological cells Selected new MEMS and NEMS processes and materials, metrology techniques, and modeling Scaling laws, actuators, power generation, and the implementation of brains in miniaturizes devices Different strategies for making micromachines smarter The transition out of the laboratory and into the marketplace The third volume in Fundamentals of Microfabrication and Nanotechnology, Third Edition, Three-Volume Set, the book discusses top-down and bottom-up manufacturing methods and explains how to use nature as a guide. It provides a better understanding of how to match different manufacturing options with a given application that students can use to identify additional killer MEMS and NEMS applications. Other volumes in the set include: Solid-State Physics, Fluidics, and Analytical Techniques in Micro- and Nanotechnology Manufacturing Techniques for Microfabrication and Nanotechnology
Carbon Nanomaterial Electronics Devices And Applications
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Author : Arnab Hazra
language : en
Publisher: Springer Nature
Release Date : 2021-05-22
Carbon Nanomaterial Electronics Devices And Applications written by Arnab Hazra and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-22 with Technology & Engineering categories.
This book brings together selective and specific chapters on nanoscale carbon and applications, thus making it unique due to its thematic content. It provides access to the contemporary developments in carbon nanomaterial research in electronic applications. Written by professionals with thorough expertise in similar broad area, the book is intended to address multiple aspects of carbon research in a single compiled edition. It targets professors, scientists and researchers belonging to the areas of physics, chemistry, engineering, biology and medicine, and working on theory, experiment and applications of carbon nanomaterials.
Materials For Sustainable Energy Storage At The Nanoscale
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Author : Fabian Ifeanyichukwu Ezema
language : en
Publisher: CRC Press
Release Date : 2023-07-21
Materials For Sustainable Energy Storage At The Nanoscale written by Fabian Ifeanyichukwu Ezema and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-21 with Science categories.
The book Materials for Sustainable Energy Storage Devices at the Nanoscale anticipates covering all electrochemical energy storage devices such as supercapacitors, lithium-ion batteries (LIBs), and fuel cells, transformation and enhancement materials for solar cells, photocatalysis, etc. The focal objective of the book is to deliver stunning and current information to the materials application at nanoscale to researchers and scientists in our contemporary time towardthe enhancement of energy conversion and storage devices. However, the contents of the proposed book, Materials for Sustainable Energy Storage at the Nanoscale, will cover various fundamental principles and wide knowledge of different energy conversion and storage devices with respect to their advancement due to the emergence of nanoscale materials for sustainable storage devices. This book is targeted to be award-winning as well as a reference book for researchers and scientists working on different types of nanoscale materials-based energy storage and conversion devices. Features Comprehensive overview of energy storage devices, an important field of interest for researchers worldwide Explores the importance and growing impact of batteries and supercapacitors Emphasizes the fundamental theories, electrochemical mechanism, and its computational view point and discusses recent developments in electrode designing based on nanomaterials, separators, and fabrication of advanced devices and their performances
Carbon Based Nanomaterials For Advanced Thermal And Electrochemical Energy Storage And Conversion
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Author : Rajib Paul
language : en
Publisher: Elsevier
Release Date : 2019-07-20
Carbon Based Nanomaterials For Advanced Thermal And Electrochemical Energy Storage And Conversion written by Rajib Paul and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-20 with Science categories.
Carbon Based Nanomaterials for Advanced Thermal and Electrochemical Energy Storage and Conversion presents a comprehensive overview of recent theoretical and experimental developments and prospects on carbon-based nanomaterials for thermal, solar and electrochemical energy conversion, along with their storage applications for both laboratory and industrial perspectives. Large growth in human populations has led to seminal growth in global energy consumption, hence fossil fuel usage has increased, as have unwanted greenhouse gases, including carbon dioxide, which results in critical environmental concerns. This book discusses this growing problem, aligning carbon nanomaterials as a solution because of their structural diversity and electronic, thermal and mechanical properties. - Provides an overview on state-of-the-art carbon nanomaterials and key requirements for applications of carbon materials towards efficient energy storage and conversion - Presents an updated and comprehensive review of recent work and the theoretical aspects on electrochemistry - Includes discussions on the industrial production of carbon-based materials for energy applications, along with insights from industrial experts
Mems And Nanotechnology Based Sensors And Devices For Communications Medical And Aerospace Applications
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Author : A. R. Jha
language : en
Publisher: CRC Press
Release Date : 2008-04-08
Mems And Nanotechnology Based Sensors And Devices For Communications Medical And Aerospace Applications written by A. R. Jha and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-08 with Computers categories.
The integration of microelectromechanical systems (MEMS) and nanotechnology (NT) in sensors and devices significantly reduces their weight, size, power consumption, and production costs. These sensors and devices can then play greater roles in defense operations, wireless communication, the diagnosis and treatment of disease, and many more applicat
Modeling Of Carbon Nanotubes Graphene And Their Composites
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Author : Konstantinos I. Tserpes
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-10-15
Modeling Of Carbon Nanotubes Graphene And Their Composites written by Konstantinos I. Tserpes and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-15 with Science categories.
A large part of the research currently being conducted in the fields of materials science and engineering mechanics is devoted to carbon nanotubes and their applications. In this process, modeling is a very attractive investigation tool due to the difficulties in manufacturing and testing of nanomaterials. Continuum modeling offers significant advantages over atomistic modeling. Furthermore, the lack of accuracy in continuum methods can be overtaken by incorporating input data either from experiments or atomistic methods. This book reviews the recent progress in continuum modeling of carbon nanotubes and their composites. The advantages and disadvantages of continuum methods over atomistic methods are comprehensively discussed. Numerical models, mainly based on the finite element method, as well as analytical models are presented in a comparative way starting from the simulation of isolated pristine and defected nanotubes and proceeding to nanotube-based composites. The ability of continuum methods to bridge different scales is emphasized. Recommendations for future research are given by focusing on what still continuum methods have to learn from the nano-scale. The scope of the book is to provide current knowledge aiming to support researchers entering the scientific area of carbon nanotubes to choose the appropriate modeling tool for accomplishing their study and place their efforts to further improve continuum methods.
Carbon Nanotube Devices
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Author :
language : en
Publisher: John Wiley & Sons
Release Date : 2008-09-08
Carbon Nanotube Devices written by and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-09-08 with Technology & Engineering categories.
Following on from the first AMN volume, this handy reference and textbook examines the topic of nanosystem design in further detail. It explains the physical and chemical basics behind the design and fabrication of nanodevices, covering all important, recent advances in the field, while introducing nanosystems to less experienced readers. The result is an important source for a fast, accurate overview of the state of the art of nanosystem realization, summarizing further important literature.
Chemical Sensors 7 And Mems Nems 7
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Author : Peter J. Hesketh
language : en
Publisher: The Electrochemical Society
Release Date : 2006
Chemical Sensors 7 And Mems Nems 7 written by Peter J. Hesketh and has been published by The Electrochemical Society this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Technology & Engineering categories.
The latest developments in chemical and biological sensor research and development. Topics include: 1. new selective species recognition surfaces and materials; 2. molecular recognition materials and approaches to minimize non-specific binding; 3. semi-selective species recognition materials; 4. novel methods for signal processing, signal amplification, and detection; 5. detection systems for multiple analytes in complex samples; 6. sensor arrays; and 7. analytical systems and approaches.