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 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 Studies of Supramolecular Assemblies of Porphyrins and Carbon 60 Fullerenes written by Lieve G. Teugels and published by . This book was released on 2009 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-assembled monolayers have shown a lot of promise for use in technological applications including microelectronics and photovoltaics. Especially structures that contain molecules with light-accepting (e.g. porphyrins) or electron transfer (e.g. fullerenes) properties are of great use. The goal of the studies discussed in this dissertation is to use nickel porphyrins and C60 fullerenes to build supramolecular assemblies on a Au(111) substrate and study the resulting structures using scanning tunneling microscopy (STM) and spectroscopy (STS). In order to achieve our goal we first need to understand the basic structure of the gold reconstructed surface and of C60 single and double layers on gold. Both of those structures have been studied in detail during the last 25 years and our results as shown in Chapter 3 correspond well with literature studies.

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 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 Characterization and Modification of Substrates for Scanning Tunneling Microscopy and Spectroscopy Studies of Nitrogen doped Carbon Nanotubes written by Hari Chandana Bellam and published by . This book was released on 2005 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nanoscopy and Nanospectroscopy written by Sandip Dhara and published by CRC Press. This book was released on 2023-03-31 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book builds a narrative on the near-field optical and spectroscopic studies with an emphasis on plasmonic- and photonic-assisted nano-optics as a tool for superlensing. Deliberations on near-field studies using confined light in various applications are included along with their commercial implications. Single-molecule detection utilizing efficient surface-enhanced Raman scattering phenomenon in the far-field and plasmonic tip-enhanced Raman scattering studies in the near-field measurements for fast analysis up to trace level is discussed. Features: Covers the broad area of nano-optical spectroscopy from the perspective of putting the concepts and innovations in the field to use. Discusses entire spectra of near-field optics and spectroscopy using light. Explores gas/chemical sensing using surface plasmon resonance (SPR) in the Kretschmann configuration. Includes dielectric nano-photonics and optical confinement. Studies phonon behaviour using confined light for the analysis of chemical, biological, and other materials. This book is aimed at graduate students and researchers in material science, analytical chemistry, nanotechnology, and electrical engineering.

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 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 Handbook of Carbon Nanotubes written by Jiji Abraham and published by Springer Nature. This book was released on 2022-11-16 with total page 2099 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook covers the fundamentals of carbon nanotubes (CNT), their composites with different polymeric materials (both natural and synthetic) and their potential advanced applications. Three different parts dedicated to each of these aspects are provided, with chapters written by worldwide experts in the field. It provides in-depth information about this material serving as a reference book for a broad range of scientists, industrial practitioners, graduate and undergraduate students, and other professionals in the fields of polymer science and engineering, materials science, surface science, bioengineering and chemical engineering. Part 1 comprises 22 chapters covering early stages of the development of CNT, synthesis techniques, growth mechanism, the physics and chemistry of CNT, various innovative characterization techniques, the need of functionalization and different types of functionalization methods as well as the different properties of CNT. A full chapter is devoted to theory and simulation aspects. Moreover, it pursues a significant amount of work on life cycle analysis of CNT and toxicity aspects. Part 2 covers CNT-based polymer nanocomposites in approximately 23 chapters. It starts with a short introduction about polymer nanocomposites with special emphasis on CNT-based polymer nanocomposites, different manufacturing techniques as well as critical issues concerning CNT-based polymer nanocomposites. The text deeply reviews various classes of polymers like thermoset, elastomer, latex, amorphous thermoplastic, crystalline thermoplastic and polymer fibers used to prepare CNT based polymer composites. It provides detailed awareness about the characterization of polymer composites. The morphological, rheological, mechanical, viscoelastic, thermal, electrical, electromagnetic shielding properties are discussed in detail. A chapter dedicated to the simulation and multiscale modelling of polymer nanocomposites is an additional attraction of this part of the Handbook. Part 3 covers various potential applications of CNT in approximately 27 chapters. It focuses on individual applications of CNT including mechanical applications, energy conversion and storage applications, fuel cells and water splitting, solar cells and photovoltaics, sensing applications, nanofluidics, nanoelectronics and microelectronic devices, nano-optics, nanophotonics and nano-optoelectronics, non-linear optical applications, piezo electric applications, agriculture applications, biomedical applications, thermal materials, environmental remediation applications, anti-microbial and antibacterial properties and other miscellaneous applications and multi-functional applications of CNT based polymer nanocomposites. One chapter is fully focussed on carbon nanotube research developments: published papers and patents. Risks associated with carbon nanotubes and competitive analysis of carbon nanotubes with other carbon allotropes are also addressed in this Handbook.

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 Improvement in Scanning Tunneling Microscopy and Carbon Nanotubes written by Samir Anil Shah and published by . This book was released on 2001 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook Of Porphyrin Science With Applications To Chemistry Physics Materials Science Engineering Biology And Medicine Volumes 41 44 written by Karl M Kadish and published by World Scientific. This book was released on 2016-07-01 with total page 1590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Porphyrins, phthalocyanines and their numerous analogs and derivatives are materials of tremendous importance in chemistry, materials science, physics, biology and medicine. They comprise the red color in blood (heme) and the green in leaves (chlorophyll); they are also excellent ligands that can coordinate with almost every metal in the Periodic Table. Grounded in natural systems, porphyrins are incredibly versatile and can be modified in many ways; each new modification yields derivatives demonstrating new chemistry, physics and biology, with a vast array of medicinal and technical applications.Because porphyrins are currently employed as platforms for study of theoretical principles and applications in a wide variety of fields, the Handbook of Porphyrin Science represents a timely ongoing series dealing in detail with the synthesis, chemistry, physicochemical and medical properties and applications of polypyrrole macrocycles. It is noteworthy that every year, new applications for tetrapyrrole ligands are developed and exploited.Professors Karl Kadish, Kevin Smith and Roger Guilard are internationally recognized experts in the research field of porphyrinoids, each having his own separate but complementary area of expertise in the field. Between them, they have published over 1750 peer-reviewed papers and jointly edited more than 55 books on diverse topics related to porphyrins and phthalocyanines. In assembling the set of new volumes of this unique handbook, they have selected and attracted the very best scientists in each sub-discipline as contributing authors.The Handbook of Porphyrin Science will prove to be a modern authoritative treatise on the subject as it continues as a collection of up-to-date works by world-renowned experts in the field. Complete with hundreds of figures, tables and structural formulas, and thousands of literature citations, all researchers and graduate students in this field will find it to be an essential, major reference source now, and for many years to come.

Download or read book Toward Spin resolved Scanning Tunneling Microscopy Using Carbon Nanotubes and Half metallic Ferromagnets written by Dirk Orgassa and published by . This book was released on 2001 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Scanning Tunneling Microscopy Study of Single walled Carbon Nanotubes on Gold written by Brinda K. Ramaiya and published by . This book was released on 2004 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Nanocomposite Materials for Environmental and Energy Harvesting Applications written by Ahmed Esmail Shalan and published by Springer Nature. This book was released on 2022-03-03 with total page 1091 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the fundamental, synthesis, properties, physico-chemical characterizations and applications of recently explored nanocomposite materials. It covers the applications of these different nanocomposite materials in the environmental and energy harvesting fields. The chapters explore the different techniques used for preparation and characterization of several types of nanocomposite materials for applications related to environmental and energy pathways. This book presents a panorama of current research in the field of nanocomposite structures for different applications. It also assesses the advantages and disadvantages of using different types of nanocomposite in the design of different material products. The comprehensive chapters explain the interactions between nanocomposite materials and mechanisms related to applications in environmental pollution and energy shortage.

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