Download or read book Structural and Electronic Properties of Self assembled Molecular Layers at the Organic metal Interface written by Hendrik Glowatzki and published by . This book was released on 2009 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Molecule Metal Interface written by Norbert Koch and published by John Wiley & Sons. This book was released on 2013-02-08 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviewing recent progress in the fundamental understanding of the molecule-metal interface, this useful addition to the literature focuses on experimental studies and introduces the latest analytical techniques as applied to this interface. The first part covers basic theory and initial principle studies, while the second part introduces readers to photoemission, STM, and synchrotron techniques to examine the atomic structure of the interfaces. The third part presents photoelectron spectroscopy, high-resolution UV photoelectron spectroscopy and electron spin resonance to study the electronic structure of the molecule-metal interface. In the closing chapter the editors discuss future perspectives. Written as a senior graduate or senior undergraduate textbook for students in physics, chemistry, materials science or engineering, the book's interdisciplinary approach makes it equally relevant for researchers working in the field of organic and molecular electronics.
Download or read book Studies of the Structural and Electronic Properties of Self assembled Monolayers written by Richard Lloyd Carroll and published by . This book was released on 2001 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: STM, I/V behaviors, NDR.
Download or read book Organic Inks of Electronically Active Materials and Their Self assembly at Air water Interface written by Yongho Joo and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-assembly is a general phenomenon which governs organization at length scales ranging from nm to mesoscale materials. When this self-assembly of nanoscale building blocks is confined at interfaces, structured interfaces can be created to modulate properties ranging from electronic, optical, biological or mechanical properties. In this thesis, we use liquid/air assembly to create structured or ordered monolayer of electronically active organic molecules and semiconducting carbon nanotubes (S-CNTs) from organic inks with exceptional control over the morphology, placement and resulting electronic properties. In the first part of this thesis we demonstrate the applicability of Langmuir-Blodgett method to the assembly of chromophores that do not strictly fall into the category of amphiphilic molecules. The ordering in the assembled layer is a function of the molecular structure, where a more rigid bridging groups lead to better ordering. Our studies show that these atypical molecules can be assembled in fairly ordered monolayers at the air/water interface and transferred to oxide surfaces, including TiO2 substrates, hence opening up a path to study the effect of specific molecular orientation or aggregation states on the charge injection dynamics. In the second part of the thesis we demonstrate a liquid/air assembly method based on an iteration of evaporative self-assembly process to create aligned monolayers of CNTs. Our method address many of the outstanding challenges in this field such as better control on the wafer scale, of the placement of S-CNTs, the type and functionalization of CNTs deposited, and their degree of alignment, density, and purity, to enable the fabrication of practical S-CNT electronic devices. Well-aligned arrays of highly electronic-type sorted S-CNTs were fabricated using Floating Evaporative Self-assembly (FESA), by exploiting the spreading of chloroform at the air/water interface of a trough. The devices fabricated by FESA show excellent S-CNT FET performance. The sorting agent PFO-BPy was used to selectively wrap and isolate S-CNT from heterogeneous mixtures in organic solvent. However, remaining polymer wrapper on the surface of CNTs can insulate the metal contact-CNT interface leading to charge injection barriers in S-CNT FETs. In the last part of the thesis we have developed a mild solution based process to remove the polymer wrapper from the S-CNT surface in solution and from aligned arrays, without adversely affecting its electronic properties. Complementary molecular dynamics simulations show that metal complexation to the backbone induces conformational changes that lead to a dynamic unwrapping of the polymer off the nanotube. Preliminary studies on this metal complexation of conjugated polymer backbone in the absence of nanotubes shows the formation of polymeric nanoparticles which is controlled by the kinetics of metal complexation.
Download or read book Electronic and Structural Properties of Metal organic Interfaces written by Benjamin Bröker and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2011 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present publication is embedded in the field of organic electronics, in which optoelectronic devices are made from carbon-based materials. In these devices, charge injection is critically determined by the electronic and structural properties of the interfaces between the electrodes and the conjugated organic materials (COMs). Three main topics are addressed: energy level tuning with new and strong electron (i) donor and (ii) acceptor materials and (iii) the density dependent re-orientation of a molecular monolayer and its impact on the energy level alignment. Ideal techniques to investigate the electronic and structural properties at interfaces are photoelectron and reflection absorption infrared spectroscopy, on which the author gives a detailed introduction.
Download or read book Self Assembly of Flat Organic Molecules on Metal Surfaces written by Manuela Mura and published by Springer Science & Business Media. This book was released on 2012-06-30 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manuela Mura's thesis is devoted to ab initio studies of self-assembled organic molecules on a gold surface. This area of research is particularly vibrant because of the various applications such studies have in nanoscience and surface chemistry and physics. In this thesis Manuela Mura uses theory to suggest atomistic models for the observed assembled and she proposes an assembly mechanism. The methods and results developed as part of this work will be of wide interest to physicists and chemists working on the assemblies of organic molecules on crystal surfaces.
Download or read book Self assembled Monolayers of Thiols written by Abraham Ulman and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work looks at thin films and self-assembled monolayers of thiols. It is aimed at researchers in chemistry, materials science, electrical engineering, biology and condensed matter physics.
Download or read book Materials Nanoarchitectonics written by Katsuhiko Ariga and published by Elsevier. This book was released on 2023-12-07 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Nanoarchitectonics: From Integrated Molecular Systems to Advanced Devices provides the latest information on the design and molecular manipulation of self-organized hierarchically structured systems using tailor-made nanoscale materials as structural and functional units. The book is organized into three main sections that focus on molecular design of building blocks and hybrid materials, formation of nanostructures, and applications and devices. Bringing together emerging materials, synthetic aspects, nanostructure strategies, and applications, the book aims to support further progress, by offering different perspectives and a strong interdisciplinary approach to this rapidly growing area of innovation. This is an extremely valuable resource for researchers, advanced students, and scientists in industry, with an interest in nanoarchitectonics, nanostructures, and nanomaterials, or across the areas of nanotechnology, chemistry, surface science, polymer science, electrical engineering, physics, chemical engineering, and materials science. - Offers a nanoarchitectonic perspective on emerging fields, such as metal-organic frameworks, porous polymer materials, or biomimetic nanostructures - Discusses different approaches to utilizing "soft chemistry" as a source for hierarchically organized materials - Offers an interdisciplinary approach to the design and construction of integrated chemical nano systems - Discusses novel approaches towards the creation of complex multiscale architectures
Download or read book Studies of the Structural and Electronic Properties of Self Assembled Monolayers Towards Molecular Electronics written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of Molecular Electronics (ME) is growing at a rapid pace. The study of materials that have utility at the level of several, or single, molecules is exciting becausethe development of these sorts of systems offers a pathway to potentially avoid the perils of continually shrinking Silicon-based fabrication. This work examines the state of the art in fabrication techniques for semiconductor systems, then examines current examples of ME to be found in the academic literature. This review is designed to plumb the depths of a few important demonstrations, as opposed to a broad overview of the entire body of work. Further, scanning probe lithography techniques are demonstrated that allow for the study of small ensembles of interesting molecules in isolation. By utilizing these techniques, the structural and electronic properties of molecules can be studied, with a focus towards determining the likely utility of a particular species in a ME framework. Experimental study of redox-active self-assembled monolayer (SAM) films shows that under specific conditions, some films display a negative differential resistance (NDR) response that has possible utility in the development of ME devices. Ferrocene- and galvinol-terminated SAMs both show NDR at room temperature. A possible mechanism for the NDR behavior is believed to be resonant tunneling through low-lying, accessible redox-states in the molecule.
Download or read book Research Methodologies for Beginners written by Kitsakorn Locharoenrat and published by CRC Press. This book was released on 2017-03-31 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook introduces the general points of view of research methodology in the scientific and engineering fields of studies and presents an overview of the technical and professional communication needed for article publication in journals. It comprises several practice exercises that will give beginners the confidence to move on the communicative activities. Every chapter provides problem sets that will help readers check their understanding of each concept. The book will also help readers formulate specific research topics, research questions, and hypotheses; conduct literature reviews relevant to the research topics; develop applicable research methodologies; and write and present their research outlining the key elements of the proposed projects. It is very useful for students and researchers opting for a course on research methodology and for seminars at undergraduate and graduate levels.
Download or read book Electronic Structure of Metal Phthalocyanines on Ag 100 written by Cornelius Krull and published by Springer Science & Business Media. This book was released on 2013-11-19 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of molecules in technological devices hinges on the proper understanding of their behavior on metallic electrodes or substrates. The intrinsic molecular electronic and magnetic properties are modified at a metallic interface, and greatly depend on the atomic configuration of the molecule-metal bond. This poses certain problems, such as the lack of reproducibility in the transport properties of molecular junctions, but also offers the possibility to induce new charge and spin configurations that are only present at the interface. The results presented in this thesis address this issue, providing a comprehensive overview of the influence of molecule-metal and molecule-molecule interactions on the electronic and magnetic properties of molecules adsorbed on metallic substrates. Using metal-phthalocyanines (MePc), a commonly used metal-organic complex as a model system, each chapter explores different aspects of the interaction with silver surfaces: the local adsorption geometry, self-assembly, the modifications of the electronic and magnetic characteristics due to hybridization and charge transfer, and finally the manipulation of molecular charge and spin states by electron doping using alkali atoms moved with the STM tip.
Download or read book Semiconductors Dielectrics and Metals for Nanoelectronics 15 In Memory of Samares Kar written by D. Misra and published by The Electrochemical Society. This book was released on with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Properties and Engineering of Complex Intermetallics written by Esther Belin-Ferr and published by World Scientific. This book was released on 2010 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on the development of fundamental knowledge with the aim of understanding materials phenomena, transformation and processing of knowledge-based multifunctional materials, surface engineering, and support for materials development and knowledge-based higher performance materials for macro-scale applications.
Download or read book Conjugated Polymer And Molecular Interfaces written by William R. Salaneck and published by CRC Press. This book was released on 2001-10-18 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defines the state-of-the-art in interface science for electronic applications of organic materials. Updates understanding of the foundaiton of interfacial properties. Describes novel electronic devices created from conjugated polymers and organic molecular solids.
Download or read book Noble Metals written by Yen-Hsun Su and published by BoD – Books on Demand. This book was released on 2012-02-01 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad spectrum of insights into the optical principle, resource, fabrication, nanoscience, and nanotechnology of noble metal. It also looks at the advanced implementation of noble metal in the field of nanoscale materials, catalysts and biosystem. This book is ideal not only for scientific researchers but also as a reference for professionals in material science, engineering, nonascience and plasmonics.
Download or read book Investigation of a Metal organic Interface Realization and Understanding of a Molecular Switch written by Olga Neucheva and published by Forschungszentrum Jülich. This book was released on 2010 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Self assembly in Nanoscience and Nanotechnology written by Ayben Kilislioglu and published by BoD – Books on Demand. This book was released on 2017-05-10 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-assembly is a common principle in molecular fabrication of natural and synthetic systems and has many important applications in the fields of nanoscience and nanotechnology. This book provides clear explanations of the principles of self-assembly with the limitations along with examples and research-based results with discussion for students, researchers, and professions.
