Download or read book Electron Transfer in Nanomaterials written by Garry Rumbles and published by The Electrochemical Society. This book was released on 2006 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Single electron Devices and Circuits in Silicon written by Zahid Ali Khan Durrani and published by World Scientific. This book was released on 2010 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews research on single-electron devices and circuits in silicon. These devices provide a means to control electronic charge at the one-electron level and are promising systems for the development of few-electron, nanoscale electronic circuits. The book considers the design, fabrication, and characterization of single-electron transistors, single-electron memories, few-electron transfer devices such as electron pumps and turnstiles, and single-electron logic devices. A review of the many different approaches used for the experimental realisation of these devices is provided and devices developed during the author''s own research are used as detailed examples. An introduction to the physics of single-electron charging effects is included. Sample Chapter(s). Chapter 1: Introduction (301 KB). Contents: Introduction; Single-Electron Charging Effects; Single-Electron Transistors in Silicon; Single-Electron Memory; Few-Electron Transfer Devices; Single-Electron Logic Circuits. Readership: Researchers, academics, and postgraduate students in nanoelectronics, nanofabrication, nanomaterials and nanostructures, quantum physics and electrical & electronic engineering.
Download or read book Electron Transfer Kinetics at Single Nanoparticles written by and published by . This book was released on with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The understanding and control of charge transfer at the very smallets scale is fundamental to nanoscience for applications such as catalysis and energy storage. However, the quantitative measurement of the kinetics of electron transfer at the nanoscale at individual free nanopartciles has not hitherto been possible. [partial abstract].
Download or read book Enzymatic Bioelectrocatalysis written by Kenji Kano and published by Springer Nature. This book was released on 2020-11-13 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the fundamental aspects of the electrochemistry and redox enzymes that underlie enzymatic bioelectrocatalysis, in which a redox enzyme reaction is coupled with an electrode reaction. Described here are the basic concept and theoretical aspects of bioelectrocatalysis and the various experimental techniques and materials used to study and characterize related problems. Also included are the various applications of bioelectrocatalysis to bioelectrochemical devices including biosensors, biofuel cells, and bioreactors. This book is a unique source of information in the area of enzymatic bioelectrocatalysis, approaching the subject from a cross-disciplinary point of view.
Download or read book Cadmium Telluride Quantum Dots written by John Donegan and published by CRC Press. This book was released on 2013-12-03 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last two decades, semiconductor quantum dots—small colloidal nanoparticles—have garnered a great deal of scientific interest because of their unique properties. Among nanomaterials, CdTe holds special technological importance as the only known II–VI material that can form conventional p–n junctions. This makes CdTe very important for the development of novel optoelectronic devices such as light-emitting diodes, solar cells, and lasers. Moreover, the demand for water-compatible light emitters and the most common biological buffers give CdTe quantum dots fields a veritable edge in biolabeling and bioimaging. Cadmium Telluride Quantum Dots: Advances and Applications focuses on CdTe quantum dots and addresses their synthesis, assembly, optical properties, and applications in biology and medicine. It makes for a very informative reading for anyone involved in nanotechnology and will also benefit those scientists who are looking for a comprehensive account on the current state of quantum dot–related research.
Download or read book Nanoscale Energy Transport and Conversion written by Gang Chen and published by Oxford University Press. This book was released on 2005-03-03 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a graduate level textbook in nanoscale heat transfer and energy conversion that can also be used as a reference for researchers in the developing field of nanoengineering. It provides a comprehensive overview of microscale heat transfer, focusing on thermal energy storage and transport. Chen broadens the readership by incorporating results from related disciplines, from the point of view of thermal energy storage and transport, and presents related topics on the transport of electrons, phonons, photons, and molecules. This book is part of the MIT-Pappalardo Series in Mechanical Engineering.
Download or read book Optical Characterization of Nanomaterials and Study of Photoinduced Electron Transfer in Quantum Dot Sensitized Solar Cells written by Baichhabi Raj Yakami and published by . This book was released on 2017 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential of environmentally friendly solar energy is enormous, but the fabrication of solar cells that are efficient and competitive to other sources of energy remains a serious challenge. The quantum dot sensitized solar cells (QDSSC) is an encouraging cost-effective option to study as it has the potential to overcome the maximum theoretical limit of traditional solar cells. The key components in QDSSCs is the quantum dot/photoanode heterostructure. So, the study of optical properties of quantum dots and photoanode materials, and the charge transfer at the interface is necessary to understand and improve the efficiency and durability of these solar cells. Zinc Tin Oxide (ZTO) has potential for use as a photoanode in QDSSCs. So, the optical properties of ZTO nanowires was studied by using diffuse reflectance, Photoluminescence(PL), and Time Resolved PL (TRPL) measurements. The ZTO nanowires have a direct forbidden transition and thus do not have band to band PL. The two distinct PL peaks observed are centered at 1.86eV (red) and 2.81eV (blue), representing two distinct defect state transitions. The time resolved PL measurements show complex non-exponential decays at all wavelengths, indicative of defect to defect transitions, with the red emissive states decaying much slower than the blue emissive states. We propose an energy band model for the nanowires and the associated transitions between the defect states that are consistent with our measurements. One of the goal of this dissertation is to study the effect of Mn doping on ZTO and the electron transfer from CdSe QDs to Mn ZTO nanoparticles. We have successfully synthesized high surface area & single phase ZTO and Mn doped ZTO NPs using hydrothermal synthesis method. The incorporation of Mn into the ZTO has been studied by using XRD, TEM and XPS. We find that the Mn2+ ion most likely substitutes for the Zn2+ ion in the ZTO crystal. The Mn doping not only changes the magnetic properties, but also modifies the optical properties of ZTO nanoparticles. It modifies the band gap energy, changes the band tail states, and creates mid-band gap states as depicted in absorbance spectra. In addition, the Mn doping in ZTO quenches the defect PL in the ZTO nanoparticles. Finally, we sensitized ZTO and Mn ZTO nanoparticles films with CdSe quantum dots to form CdSe/ZTO and CdSe/Mn ZTO nanoparticle interfaces. A comparative electron transfer study is conducted in CdSe/Mn ZTO and CdSe/ZTO interface using fs transient absorption. Our result suggests that the electron transfer from CdSe is a not a single step process, but instead involves the intermediate charge transfer state. The faster time constant is associated with charge transfer and is found to be 2 ps and 3.7 ps in CdSe/ZTO and CdSe/Mn ZTO samples, respectively. The slower time constant is due to charge dissociation and occurs on a time scale of 28 ps and 30 ps in CdSe/ZTO and CdSe/Mn ZTO, respectively. The observed electron transfers differences due to the Mn doping in the ZTO nanoparticles has been analyzed using the Marcus theory of electron transfer, considering the effect of driving force and sub band gap states on the transfer rate, and agrees with our measurements.
Download or read book Conservation Needs Lake County Montana written by and published by . This book was released on 1962* with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electron Transport in Nanosystems written by Janez Bonca and published by Springer Science & Business Media. This book was released on 2008-10-24 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop on Electron Transport in Nanosystems Yalta, Ukraine 17-21 September 2007
Download or read book Photocatalytic Hydrogen Evolution written by Misook Kang and published by MDPI. This book was released on 2020-06-17 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy crises and global warming pose serious challenges to researchers in their attempt to develop a sustainable society for the future. Solar energy conversion is a remarkable, clean, and sustainable way to nullify the effects of fossil fuels. The findings of photocatalytic hydrogen production (PCHP) by Fujishima and Honda propose that “water will be the coal for the future”. Hydrogen is a carbon-free clean fuel with a high specific energy of combustion. Titanium oxide (TiO2), graphitic-carbon nitride (g-C3N4) and cadmium sulfide (CdS) are three pillars of water splitting photocatalysts owing to their superior electronic and optical properties. Tremendous research efforts have been made in recent years to fabricate visible or solar-light, active photocatalysts. The significant features of various oxide, sulfide, and carbon based photocatalysts for cost-effective hydrogen production are presented in this Special Issue. The insights of sacrificial agents on the hydrogen production efficiency of catalysts are also presented in this issue.
Download or read book Nanoelectrochemistry written by Michael V. Mirkin and published by CRC Press. This book was released on 2015-03-27 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscale electrochemistry has revolutionized electrochemical research and technologies and has impacted other fields, including nanotechnology and nanoscience, biology, and materials chemistry. This book examines well-established concepts and principles and provides an updated overview of the field and its applications. The first two chapters contain theoretical background, specifically, theories of electron transfer, transport, and double-layer processes at nanoscale electrochemical interfaces. The next chapters examine the electrochemical studies of nanomaterials and nanosystems, as well as the applications of nanoelectrochemical techniques. Each chapter can be read independently, providing readers with a compact, up-to-date review of th
Download or read book Handbook Of Carbon Nano Materials Volume 1 Synthesis And Supramolecular Systems Volume 2 Electron Transfer And Applications written by Karl M Kadish and published by World Scientific. This book was released on 2011-01-31 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hands on reference guide for scientists working in the fields of chemistry, physics, materials science, polymer science, solid-state physics, devices, nanotechnology or supramolecular science of carbon nanomaterials. In-depth and comprehensive coverage of topics combined with the perspectives for future research by the contributing authors. An invaluable reference source essential for both beginning and advanced researchers in the field.
Download or read book Heterogenous Photochemical Electron Transfer written by Michael Gratzel and published by CRC Press. This book was released on 2018-01-18 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present monograph attempts to unify these diverse and exciting new developments within a common framework. First, the physical principles underlying heterogenous electron-transfer processes are outlined in a concise way and are compared to the homogeneous counterpart. This analysis includes the notion of the Fermi level in liquids and solids as well as the distribution of electronic energy levels in solids and liquids. A comparison is made between the salient kinetic features of homogeneous and heterogeneous electron transfer reactions. This establishes the basis for the subsequent treatment of the transduction of excitation energy and photo-initiated electron transfer in organized molecular assemblies, such as micelles, vesicles and monolayers. Transmembrane redox processes are critically reviewed. Particular attention is given to semiconductor electrodes and particles. This includes a discussion of quantum size effects, the nature of space charge layers as well as surface states and the dynamics of charge carrier-induced redox reactions at the semiconductor solution interface. These processes are of fundamental importance in such diverse fields as photochromism, electrochromic displays, electroreprography and photography, information storage, photocatalysis, photodegradation of paints, and solar energy conversion.
Download or read book Controlling Photoinduced Electron Transfer Dynamics Between Molecular Adsorbates and Semiconductors Nanoparticles written by Jianchang Guo and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Electron Transfer Processes written by R. J. Dwayne Miller and published by Wiley-VCH. This book was released on 1995-05-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an extensive theoretical treatment of surface electron transfer processes. The emphasis is on electronic coupling of molecular potentials to conducting band states. The essential role of surface electron transfer in catalysis, electrochemistry, photo imaging, and virtually all charge transfer solid state devices make this process one of the most important single chemical events. The assumptions in the theories will be highlighted and major emphasis will be placed on the unknown nature of the electronic coupling. This latter point is the driving force for current experiments in the area. The chapter on theory will form the cornerstone for the chapters covering experimental findings on surface processes. The book will be written in a fashion so as to be useful as a text book, yet emphasize the challenges that remain ahead in understanding electron tunneling phenomena. The book is written in a tutorial fashion at a level suitable for graduate students with little background in the area.
Download or read book Electron Transfer Reactions written by R. D. Cannon and published by Butterworth-Heinemann. This book was released on 2016-07-29 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron Transfer Reactions deals with the mechanisms of electron transfer reactions between metal ions in solution, as well as the electron exchange between atoms or molecules in either the gaseous or solid state. The book is divided into three parts. Part 1 covers the electron transfer between atoms and molecules in the gas state. Part 2 tackles the reaction paths of oxidation states and binuclear intermediates, as well as the mechanisms of electron transfer. Part 3 discusses the theories and models of the electron transfer process; theories and experiments involving bridged electron transfer; optical electron transfer; and electron transfer in the solid state. The text is recommended for chemists who would like to know more about the principles and mechanisms behind electron transfer reactions.
Download or read book Metal Oxide Nanocomposites written by B. Raneesh and published by John Wiley & Sons. This book was released on 2021-02-17 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide Nanocomposites: Synthesis and Applications summarizes many of the recent research accomplishments in the area of metal oxide-based nanocomposites. This book focussing on the following topics: Nanocomposites preparation and characterization of metal oxide nanocomposites; synthesis of core/shell metal oxide nanocomposites; multilayer thin films; sequential assembly of nanocomposite materials; semiconducting polymer metal oxide nanocomposites; graphene-based metal and metal oxide nanocomposites; carbon nanotube–metal–oxide nanocomposites; silicon mixed oxide nanocomposites; gas semiconducting sensors based on metal oxide nanocomposites; metal ]organic framework nanocomposite for hydrogen production and nanocomposites application towards photovoltaic and photocatalytic.
