Download or read book Laser induced Graphene written by Ruquan Ye and published by . This book was released on 2020-11-30 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: LIG is a revolutionary technique that uses a common CO2 infrared laser scriber, like the one used in any machine shop, for the direct conversion of polymers into porous graphene under ambient conditions. This technique combines the preparation and patterning of 3D graphene in a single step, without the use of wet chemicals. The ease in the structural engineering and excellent mechanical properties of the 3D graphene obtained have made LIG a versatile technique for applications across many fields. This book compiles cutting-edge research on LIG by different research groups all over the world. It discusses the strategies that have been developed to synthesize and engineer graphene, including controlling its properties such as porosity, composition, and surface characteristics. The authors are pioneers in the discovery and development of LIG and the book will appeal to anyone involved in nanotechnology, chemistry, environmental sciences, and device development, especially those with an interest in the synthesis and applications of graphene-based materials.
Download or read book Laser Induced Graphene written by Ruquan Ye and published by CRC Press. This book was released on 2020-11-29 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: LIG is a revolutionary technique that uses a common CO2 infrared laser scriber, like the one used in any machine shop, for the direct conversion of polymers into porous graphene under ambient conditions. This technique combines the preparation and patterning of 3D graphene in a single step, without the use of wet chemicals. The ease in the structural engineering and excellent mechanical properties of the 3D graphene obtained have made LIG a versatile technique for applications across many fields. This book compiles cutting-edge research on LIG by different research groups all over the world. It discusses the strategies that have been developed to synthesize and engineer graphene, including controlling its properties such as porosity, composition, and surface characteristics. The authors are pioneers in the discovery and development of LIG and the book will appeal to anyone involved in nanotechnology, chemistry, environmental sciences, and device development, especially those with an interest in the synthesis and applications of graphene-based materials.
Download or read book Graphene Based Terahertz Electronics and Plasmonics written by Vladimir Mitin and published by CRC Press. This book was released on 2020-11-23 with total page 917 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene demonstrates interesting electrical, optical, and optoelectronic properties. A number of other one-atom-thick material structures have been discovered and studied. Industrially applicable technologies for these structures are currently under active development. In spite of enormous research in the area of devices based on graphene, the number of extensive review publications on THz devices based on graphene is small. This review volume would fill the gap. Researchers and engineers working in the fields of electronics and plasmonics can use it to understand the influence of plasmonics on device performance. The book can be also be used as a required text for doctorate courses and as a supplementary material for postgraduate courses. The material presented in the book is reviewed in detail in Chapter 1. Chapter 2 discusses the electronic and plasmonic properties of graphene and heterostructures based on graphene for all devices. Chapters 3–7 focus on the concepts of detectors and emitters with a special emphasis on plasmonic enhancement of those devices as well as on population inversion and lasing.
Download or read book Carbon Nanotubes and Graphene written by Kazuyoshi Tanaka and published by Newnes. This book was released on 2014-07-10 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Nanotubes and Graphene is a timely second edition of the original Science and Technology of Carbon Nanotubes. Updated to include expanded coverage of the preparation, purification, structural characterization, and common application areas of single- and multi-walled CNT structures, this work compares, contrasts, and, where appropriate, unitizes CNT to graphene. This much expanded second edition reference supports knowledge discovery, production of impactful carbon research, encourages transition between research fields, and aids the formation of emergent applications. New chapters encompass recent developments in the theoretical treatments of electronic and vibrational structures, and magnetic, optical, and electrical solid-state properties, providing a vital base to research. Current and potential applications of both materials, including the prospect for large-scale synthesis of graphene, biological structures, and flexible electronics, are also critically discussed. Updated discussion of properties, structure, and morphology of biological and flexible electronic applications aids fundamental knowledge discovery Innovative parallel focus on nanotubes and graphene enables you to learn from the successes and failures of, respectively, mature and emergent partner research disciplines High-quality figures and tables on physical and mathematical applications expertly summarize key information – essential if you need quick, critically relevant data
Download or read book Printed Flexible Sensors written by Anindya Nag and published by Springer. This book was released on 2019-03-11 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent advances in the design, fabrication and implementation of flexible printed sensors. It explores a range of materials for developing the electrode and substrate parts of the sensors, on the basis of their electrical and mechanical characteristics. The sensors were processed using laser cutting and 3D printing techniques, and the sensors developed were employed in a number of healthcare, environmental and industrial applications, including: monitoring of physiological movements, respiration, salinity and nitrate measurement, and tactile sensing. The type of sensor selected for each application depended on its dimensions, robustness and sensitivity. The sensors fabricated were also embedded in an IoT-based system, allowing them to be integrated into real-time applications.
Download or read book Graphene Based Laser written by Laura Rodríguez Suñé and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber lasers have a number of qualities which make them very attractive for short pulses generation (ns) via Q-switching and ultra-short pulse generation (ps) via active or passive mode locking mechanisms. The gain bandwidth of rare-earth-doped fibers is large, typically tens of nanometers, which allows the generation of femtosecond pulses. The high gain of active fibers enables fiber lasers to operate with fairly low pump powers and tolerate intra-cavity optical elements with relatively high optical losses. Fiber laser setups are compact and alignment free. In this project a laboratory-made mode-locked fiber laser is presented. This operation regime is achieved using graphene oxide as saturable absorber. Recent studies have shown that graphene as well as graphene oxide show strong nonlinear ultrafast absorption which makes these materials very attractive to achieve passive mode-locking. At the end of the project it is also analyzed the performance of monolayer pure graphene when mode-locking our laser. Femtosecond fiber lasers are used in a wide range of applications such as sources in communication systems, as spectroscopic tools in the laboratory for time-resolved studies of fast nonlinear phenomena in semiconductors and as a source for pulse sensors. In femtosecond pulsed lasers the photon density is high enough to induce multiphoton absorption or other non-linear effects (second and third harmonic generation) without damaging the biological specimens as those lasers enable high peak powers but at low energies. Nowadays femtosecond fiber laser with operating wavelength at 1550 nm are being used as a excitation source for multiphoton and third harmonic generation microscopy. In this project it is demonstrated that our laboratory-made mode-locked fiber laser would be able to reach power values required for multiphoton microscopy without modifying its pulse duration during the amplification system. A precise technique for measuring the pulse duration called autocorrelation is presented too from which we obtained pulses of 67.7 ps. The state of the art for ultra-short pulse generation is lower as femtosecond pulses are being achieved.
Download or read book Recent Trends in Carbon written by O. P. Bahl and published by . This book was released on 1997 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxide Electronics written by Asim K. Ray and published by John Wiley & Sons. This book was released on 2021-04-12 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxide Electronics Multiple disciplines converge in this insightful exploration of complex metal oxides and their functions and properties Oxide Electronics delivers a broad and comprehensive exploration of complex metal oxides designed to meet the multidisciplinary needs of electrical and electronic engineers, physicists, and material scientists. The distinguished author eschews complex mathematics whenever possible and focuses on the physical and functional properties of metal oxides in each chapter. Each of the sixteen chapters featured within the book begins with an abstract and an introduction to the topic, clear explanations are presented with graphical illustrations and relevant equations throughout the book. Numerous supporting references are included, and each chapter is self-contained, making them perfect for use both as a reference and as study material. Readers will learn how and why the field of oxide electronics is a key area of research and exploitation in materials science, electrical engineering, and semiconductor physics. The book encompasses every application area where the functional and electronic properties of various genres of oxides are exploited. Readers will also learn from topics like: Thorough discussions of High-k gate oxide for silicon heterostructure MOSFET devices and semiconductor-dielectric interfaces An exploration of printable high-mobility transparent amorphous oxide semiconductors Treatments of graphene oxide electronics, magnetic oxides, ferroelectric oxides, and materials for spin electronics Examinations of the calcium aluminate binary compound, perovoksites for photovoltaics, and oxide 2Degs Analyses of various applications for oxide electronics, including data storage, microprocessors, biomedical devices, LCDs, photovoltaic cells, TFTs, and sensors Suitable for researchers in semiconductor technology or working in materials science, electrical engineering, and physics, Oxide Electronics will also earn a place in the libraries of private industry researchers like device engineers working on electronic applications of oxide electronics. Engineers working on photovoltaics, sensors, or consumer electronics will also benefit from this book.
Download or read book Nanodevices for Microwave and Millimeter Wave Applications written by Isabelle Huynen and published by MDPI. This book was released on 2020-06-16 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microwave and millimeter wave frequency range is nowadays widely exploited in a large variety of fields including (wireless) communications, security, radar, spectroscopy, but also astronomy and biomedical, to name a few. This Special Issue focuses on the interaction between the nanoscale dimensions and centimeter to millimeter wavelengths. This interaction has been proven to be efficient for the design and fabrication of devices showing enhanced performance. Novel contributions are welcome in the field of devices based on nanoscaled geometries and materials. Applications cover, but not are limited to, electronics, sensors, signal processing, imaging and metrology, all exploiting nanoscale/nanotechnology at microwave and millimeter waves. Contributions can take the form of short communications, regular or review papers.
Download or read book Study of Laser induced Graphene Based Flexible Humidity Sensor written by Zhaozheng Yu and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Capacitive humidity sensors based on laser-induced graphene (LIG) were fabricated by using the CO2 laser to scribe on the commercial polyimide thin film (thickness = 50m). The laser-ablated region of the polyimide turns into a porous structure with carbon as the main composition. Raman spectra and scanning electron microscope were used to characterize the LIGs chemical and morphology. Patterning LIG into the interdigitated electrode (IDE) to serve as both the electrode and sensing materials was achieved in one step. The proposed flexible humidity sensor demonstrates the sensitivity of 10% and response/recovery time of 109s/13.5s, respectively. In general, a promising humidity sensor with improved response/recovery time and good sensitivity can be fabricated in an easy, fast, and low-cost manner.
Download or read book Graphene Photonics written by Jia-Ming Liu and published by Cambridge University Press. This book was released on 2018-12-13 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene is a single-layer crystal of carbon, the thinnest two-dimensional material. It has unique electronic and photonic properties.
Download or read book Microsupercapacitors written by Kazufumi Kobashi and published by Woodhead Publishing. This book was released on 2021-10-01 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microsupercapacitors systematically guides the reader through the key materials, characterization techniques, performance factors and potential applications and benefits to society of this emerging electrical energy storage solution. The book reviews the technical challenges in scaling down supercapacitors, covering materials, performance, design and applications perspectives. Sections provide a fundamental understanding of microsupercapacitors and compare them to existing energy storage technologies. Final discussions consider the factors that impact performance, potential tactics to improve performance, barriers to implementation, emerging solutions to those barriers, and a future outlook. This book will be of particular interest to materials scientists and engineers working in academia, research and development. Provides a concise introduction of the fundamental science, related technological challenges, and solutions that microsupercapacitors can offer Compares microsupercapacitors with current technologies Reviews the applications of new strategies and the challenge of scaling down supercapacitors Covers the most relevant applications, including energy storage, energy harvesting, sensors and biomedical devices
Download or read book Graphene Carbon Nanotubes and Nanostructures written by James E. Morris and published by CRC Press. This book was released on 2017-07-28 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene, Carbon Nanotubes, and Nanostructures: Techniques and Applications offers a comprehensive review of groundbreaking research in nanofabrication technology and explores myriad applications that this technology has enabled. The book examines the historical evolution and emerging trends of nanofabrication and supplies an analytical understanding of some of the most important underlying nanofabrication technologies, with an emphasis on graphene, carbon nanotubes (CNTs), and nanowires. Featuring contributions by experts from academia and industry around the world, this book presents cutting-edge nanofabrication research in a wide range of areas. Topics include: CNT electrodynamics and signal propagation models Electronic structure calculations of a graphene–hexagonal boron nitride interface to aid the understanding of experimental devices based on these heterostructures How a laser field would modify the electronic structure and transport response of graphene, to generate bandgaps The fabrication of transparent CNT electrodes for organic light-emitting diodes Direct graphene growth on dielectric substrates, and potential applications in electronic and spintronic devices CNTs as a promising candidate for next-generation interconnect conductors CMOS–CNT integration approaches, including the promising localized heating CNT synthesis method CNTs in electrochemical and optical biosensors The synthesis of diamondoids by pulsed laser ablation plasmas generated in supercritical fluids, and possible applications The use of DNA nanostructures in lithography CMOS-compatible silicon nanowire biosensors The use of titanium oxide-B nanowires to detect explosive vapors The properties of protective layers on silver nanoparticles for ink-jet printing Nanostructured thin-film production using microreactors A one-stop reference for professionals, researchers, and graduate students working in nanofabrication, this book will also be useful for investors who want an overview of the current nanofabrication landscape.
Download or read book Graphene based Carbocatalysts Synthesis Properties and Applications written by Pinki Bala Punjabi and published by Bentham Science Publishers. This book was released on 2023-05-31 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book informs readers about recent advances in graphene carbocatalysis encapsulating the current developments in the syntheses, properties, characterizations, functionalization and catalytic applications of graphene, its derivatives and composites. It serves as a comprehensive primary reference book for chemistry and engineering students who are required to learn about graphene chemistry in detail. It also serves as an introductory reference for industry professionals and researchers who are interested in graphene research as well as its emerging applications in catalysis and beyond Volume 1 provides an introduction to catalysis and the chemistry of graphene. This is followed by chapters that cover the chemistry of graphene compounds. Next, it covers the functionalization of graphene into catalytic materials and its role in the synthesis of nanocomposites. Finally, the book delves into the complex aspects of graphene carbocatalysis: recent advances in graphene supported palladium catalysts for coupling reactions, applications of graphene-based catalysts in multicomponent, domino reactions, oxidation and reduction reactions, and recent trends in biocatalytic properties of graphene-based composites are all discussed in detail.
Download or read book Nanoporous Carbons for Soft and Flexible Energy Devices written by Francesca Borghi and published by Springer. This book was released on 2023-01-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an interesting snapshot of new research within the fields of flexible and soft devices which use porous carbon-based materials. The increase in demand for soft and flexible electronics, electrochemical energy storage/conversion systems, piezoresistive pressure sensors has promoted the development of new strategies for the synthesis and integration of nanoporous carbon (NPC) into flexible and soft polymers and inorganic textures. The structural properties of such NPC materials combined with their mechanical, conductive and catalytic properties, show promising results for the technology they are designed for, which can be useful solutions in many other disciplines. An in-depth discussion of the use of NPC materials in different energy devices is provided in every chapter, while at the same time the knowledge of the reader on the various applications where these materials can be used will be broadened. This book sheds new light on nanoporous carbon-based materials and will be of great interest to graduate students and professionals working in this field.
Download or read book Graphene Based Materials written by Subbiah Alwarappan and published by CRC Press. This book was released on 2013-10-14 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuously studied since its discovery, graphene offers truly unique opportunities, because unlike most semiconductor systems, its 2D electronic states are not buried deep under the surface and it can be easily accessed directly by tunneling or by other local probes. An in-depth analysis of recent advances in graphene research, Graphene-Based Materials: Science and Technology discusses synthesis, properties, and their important applications in several fields. It examines methods for synthesis of graphene as well as surface characterization, properties, and application in biosensors and energy storage. The book begins with a brief review of the history of graphene and a discussion of its important properties. It then presents the different methods of graphene synthesis available and a brief overview of a few important characterization techniques that distinguishes graphene from its allotropes. The authors detail the applications of graphene in high-speed electronics, field-effect transistors, biosensors, gas-sensors, ultra-capacitors, photonics, optoelectronics, and drug delivery. They conclude with coverage of the toxicity properties of graphene and the future of graphene research. Written by experts with more than a decade of experience in nanotechnology research, the book incorporates the latest literature and findings in the field. Its emphasis on applications, especially biomedical/electrochemical and energy storage applications, sets it apart from other books on this topic. It provides those working in graphene and related materials a resource that helps initiate new thinking.
Download or read book Wideband Tunable Graphene based Passively Q switched Tm YAP Laser written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
