Download or read book Scanning Tunneling Microscopy and Spectroscopy of Carbon Nanotubes Interfaced with Silicon Surfaces written by Peter Michael Albrecht and published by . This book was released on 2007 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-walled carbon nanotubes (SWNTs) are high-aspect-ratio molecular wires that exhibit either metallic or semiconducting behavior depending upon their diameter and chiral angle. SWNTs support high-mobility electrical conduction, are chemically and mechanically robust, and can both emit and detect infrared light. These properties recommend SWNTs as the building blocks of a future molecular nanotechnology. In the near term, however, the integration of SWNTs with silicon-based complementary metal-oxide-semiconductor (CMOS) technology holds the greatest promise in terms of economic and manufacturing feasibility. In this thesis, the ultrahigh vacuum scanning tunneling microscope (UHV-STM) is used to examine SWNTs directly interfaced with the hydrogen-passivated Si(100) surface. An approach termed dry contact transfer (DCT) was developed for the UHV deposition of SWNTs with minimal disruption of the atomically flat Si(100)-2x1:H surface. Isolated, rather than bundled, SWNTs could be routinely located on the surface for atomically resolved imaging, tunneling current-voltage spectroscopy, lateral manipulation, and cutting with the room-temperature UHV-STM. The removal of hydrogen at the nanotube-silicon interface via UHV-STM electron-stimulated desorption resulted in structural and electronic modifications to the SWNT. The growing body of first-principles simulations of the SWNT/Si(100) system was drawn upon in the interpretation of such local perturbations. Weakly adsorbed SWNTs initially unstable in the presence of the rastered STM tip could be stabilized by depassivating the underlying H-Si(100) surface. Finally, feedback-controlled cutting of SWNTs with the UHV-STM was demonstrated as a precise and reproducible means of preparing one or more finite-sized SWNTs from an extended tube.
Download or read book Scanning Tunneling Microscopy and Spectroscopy of Single walled Carbon Nanotubes Directly Interfaced with Atomically Pristine Silicon Surfaces written by Peter Michael Albrecht and published by . This book was released on 2004 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Tunneling Microscopy and Spectroscopy of Nanometer Scale Metallic Features on Silicon Surfaces written by Wei Ye and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanometer scale metals are of great interest due to their potential applications in the future of molecular/atomic scale devices. For example, nanometer scale metal contacts on semiconducting single-walled carbon nanotubes (SWNTs) can determine the transport performance of SWNT based field effect transistors (FETs). In this thesis, I have used an ultrahigh vacuum (UHV) scanning tunneling microscope (STM) to fabricate nanometer scale metallic features on the Si(100)-2©71:H surface and form nanoscale metal contacts on the SWNTs. Scanning tunneling spectroscopy (STS) is used to study the electronic properties of the metallic features and the nano-contacts. Two kinds of metallic features are studied. First, an unpaired dangling bond (DB) can be formed on Si(100)-2©71:H surface using an STM nanolithography method. The unpaired DB, which shows metallic behavior, can perturb its surroundings electronically up to ~1.9 nm by introducing a near-midgap state in the local density of states (LDOS) of neighboring Si atoms. The decay length of the DB-states of an unpaired DB wire can be ~2.5 nm along the dimer row direction. The perturbation of an unpaired DB to an adjacent paired DB is also demonstrated. Second, sub-5 nm HfB2 metals can be direct written on the Si surface using STM electron beam induced deposition (STM-EBID). Nanoscale contacts between HfB2 metal and semiconducting SWNTs can be formed by direct writing HfB2 onto a SWNT or by manipulating a SWNT with the STM tip onto HfB2. STS studies indicate a strong Schottky barrier formed at the HfB2/SWNT interface, which induces metallicity in the SWNT. Metal induced gap states (MIGS) are also observed adjacent to the contact.
Download or read book Scanning Tunneling Microscopy and Spectroscopy of Silicon and Carbon Surfaces written by Shenda Mary Baker and published by . This book was released on 1992 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Probe Microscopy in Nanoscience and Nanotechnology 2 written by Bharat Bhushan and published by Springer Science & Business Media. This book was released on 2010-12-17 with total page 823 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the physical and technical foundation of the state of the art in applied scanning probe techniques. It constitutes a timely and comprehensive overview of SPM applications. The chapters in this volume relate to scanning probe microscopy techniques, characterization of various materials and structures and typical industrial applications, including topographic and dynamical surface studies of thin-film semiconductors, polymers, paper, ceramics, and magnetic and biological materials. The chapters are written by leading researchers and application scientists from all over the world and from various industries to provide a broader perspective.
Download or read book Fundamentals and Applications of Nano Silicon in Plasmonics and Fullerines written by Munir H. Nayfeh and published by Elsevier. This book was released on 2018-06-29 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals and Applications of Nano Silicon in Plasmonics and Fullerines: Current and Future Trends addresses current and future trends in the application and commercialization of nanosilicon. The book presents current, innovative and prospective applications and products based on nanosilicon and their binary system in the fields of energy harvesting and storage, lighting (solar cells and nano-capacitor and fuel cell devices and nanoLEDs), electronics (nanotransistors and nanomemory, quantum computing, photodetectors for space applications; biomedicine (substance detection, plasmonic treatment of disease, skin and hair care, implantable glucose sensor, capsules for drug delivery and underground water and oil exploration), and art (glass and pottery). Moreover, the book includes material on the use of advanced laser and proximal probes for imaging and manipulation of nanoparticles and atoms. In addition, coverage is given to carbon and how it contrasts and integrates with silicon with additional related applications. This is a valuable resource to all those seeking to learn more about the commercialization of nanosilicon, and to researchers wanting to learn more about emerging nanosilicon applications. Features a variety of designs and operation of nano-devices, helping engineers to make the best use of nanosilicon Contains underlying principles of how nanomaterials work and the variety of applications they provide, giving those new to nanosilicon a fundamental understanding Assesses the viability of various nanoslicon devices for mass production and commercialization, thereby providing an important source of information for engineers
Download or read book Carbon Nanotubes From Basic Research to Nanotechnology written by Valentin N. Popov and published by Springer Science & Business Media. This book was released on 2006-04-04 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book comprises reviews on various topics of carbon nanotube research from specialists in the field, together with reports on on-going research. Both are intended to give a detailed picture of the remarkable properties of these one-dimensional nanostructures. Particular attention is paid to the synthesis, characterization, properties, and application of nanotubes. The book will be an indispensable introduction for the newcomers in the field as well as a valuable update for researchers in the field, for it contains the most recent developments.
Download or read book Photophysics of Carbon Nanotubes Interfaced with Organic and Inorganic Materials written by Igor A. Levitsky and published by Springer Science & Business Media. This book was released on 2012-12-22 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photophysics of Carbon Nanotubes Interfaced with Organic and Inorganic Materials describes physical, optical and spectroscopic properties of the emerging class of nanocomposites formed from carbon nanotubes (CNTs) interfacing with organic and inorganic materials. The three main chapters detail novel trends in photophysics related to the interaction of light with various carbon nanotube composites from relatively simple CNT/small molecule assemblies to complex hybrids such as CNT/Si and CNT/DNA nanostructures. The latest experimental results are followed up with detailed discussions and scientific and technological perspectives to provide a through coverage of major topics including: -Light harvesting, energy conversion, photoinduced charge separation and transport in CNT based nanohybrids -CNT/polymer composites exhibiting photoactuation; and -Optical spectroscopy and structure of CNT/DNA complexes. Including original data and a short review of recent research, Photophysics of Carbon Nanotubes Interfaced with Organic and Inorganic Materials makes this emerging field of photophysics and its applications available to academics and professionals working with carbon nanotube composites in fundamental and applied fields
Download or read book Scanning Tunneling Microscopy and Field Emission Studies of Carbon Nanostructures written by Philip Godfrey Collins and published by . This book was released on 1998 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Probe Microscopy written by Sergei V. Kalinin and published by Springer Science & Business Media. This book was released on 2007-04-03 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume will be devoted to the technical aspects of electrical and electromechanical SPM probes and SPM imaging on the limits of resolution, thus providing technical introduction into the field. This volume will also address the fundamental physical phenomena underpinning the imaging mechanism of SPMs.
Download or read book Scanning Tunneling Microscopy and Spectroscopy of Sidewall Functionalized Singlewalled Carbon Nanotubes written by Andrea Vencelová and published by . This book was released on 2006 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Tunneling Microscopy and Spectroscopy of Porphyrins and Carbon Nanotubes written by Mark Alexander Bissett and published by . This book was released on 2007 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Scanning Probe Methods VII written by Bharat Bhushan and published by Springer Science & Business Media. This book was released on 2006-11-09 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume in the series was released in January 2004 and the second to fourth volumes in early 2006. The field is now progressing so fast that there is a need for one volume every 12 to 18 months to capture latest developments. Volume VII presents 9 chapters on a variety of new and emerging techniques and refinements of SPM applications.
Download or read book Scanning Tunneling Microscopy spectroscopy Measurements and Density Functional Theory Calculations on Iridium modified Silicon Surfaces and Self assembled Monolayer of Organic Molecules on Graphite written by Fnu Fatima and published by . This book was released on 2018 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book One Dimensional Nanostructures written by Tianyou Zhai and published by John Wiley & Sons. This book was released on 2012-10-19 with total page 857 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the latest research breakthroughs and applications Since the discovery of carbon nanotubes in 1991, one-dimensional nanostructures have been at the forefront of nanotechnology research, promising to provide the building blocks for a new generation of nanoscale electronic and optoelectronic devices. With contributions from 68 leading international experts, this book reviews both the underlying principles as well as the latest discoveries and applications in the field, presenting the state of the technology. Readers will find expert coverage of all major classes of one-dimensional nanostructures, including carbon nanotubes, semiconductor nanowires, organic molecule nanostructures, polymer nanofibers, peptide nanostructures, and supramolecular nanostructures. Moreover, the book offers unique insights into the future of one-dimensional nanostructures, with expert forecasts of new research breakthroughs and applications. One-Dimensional Nanostructures collects and analyzes a wealth of key research findings and applications, with detailed coverage of: Synthesis Properties Energy applications Photonics and optoelectronics applications Sensing, plasmonics, electronics, and biosciences applications Practical case studies demonstrate how the latest applications work. Tables throughout the book summarize key information, and diagrams enable readers to grasp complex concepts and designs. References at the end of each chapter serve as a gateway to the literature in the field. With its clear explanations of the underlying principles of one-dimensional nanostructures, this book is ideal for students, researchers, and academics in chemistry, physics, materials science, and engineering. Moreover, One-Dimensional Nanostructures will help readers advance their own investigations in order to develop the next generation of applications.
Download or read book Theoretical Studies of Scanning Tunneling Microscopy and Electron Transport Through Nanostructures written by Khoonghong Khoo and published by . This book was released on 2007 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Tunneling Microscopy and Spectroscopy Simulations of the Silicon 111 7x7 Surface written by Weiming Liu and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
