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Molecular electronics, an emerging research field at the border of physics, chemistry, and material sciences, has attracted great interest in the last decade. To achieve the ultimate goal of designing molecular electronic devices with the desired functionality and experimental manipulation at the single-molecule level, theoretical understanding of
There are fundamental and technological limits of conventional microfabrication and microelectronics. Scaling down conventional devices and attempts to develop novel topologies and architectures will soon be ineffective or unachievable at the device and system levels to ensure desired performance. Forward-looking experts continue to search for new paradigms to carry the field beyond the age of microelectronics, and molecular electronics is one of the most promising candidates. The Nano and Molecular Electronics Handbook surveys the current state of this exciting, emerging field and looks toward future developments and opportunities. Molecular and Nano Electronics Explained Explore the fundamentals of device physics, synthesis, and design of molecular processing platforms and molecular integrated circuits within three-dimensional topologies, organizations, and architectures as well as bottom-up fabrication utilizing quantum effects and unique phenomena. Technology in Progress Stay current with the latest results and practical solutions realized for nanoscale and molecular electronics as well as biomolecular electronics and memories. Learn design concepts, device-level modeling, simulation methods, and fabrication technologies used for today's applications and beyond. Reports from the Front Lines of Research Expert innovators discuss the results of cutting-edge research and provide informed and insightful commentary on where this new paradigm will lead. The Nano and Molecular Electronics Handbook ranks among the most complete and authoritative guides to the past, present, and future of this revolutionary area of theory and technology.
This volume explores the resurgence of interest in the field of molecular electronics in view of recent advances in such areas as molecular wires, molecular components, fabrication, and assemblies of molecular scale devices and their wiring on surfaces. It shows how molecular electronics offer scientists an opportunity to study and understand a new class of materials, on the molecular level and in isolation, while offering to engineers a new microelectronics technology.
The NODEPD symposium addressed the most recent developments in nanoscale electronic and photonic devices, encompassing one dimensional novel devices, processing, device fabrication, reliability, and other related topics.
"Ever since Aviram and Ratner's revolutionary paper in 1974 that proposed that molecules could conduct electrical current molecular electronics has attracted a great deal of interest as a potential replacement for silicon technology. Using molecules in electronic devices offers many advantages including high device density due to their small size and the ability to integrate new functions into devices with well-designed synthesis. One such example is sensing as the conduction in a molecular wire has been shown to be incredibly sensitive to its local environment. Proof-of-concept experiments have demonstrated that the conduction of oligophenylene vinylene (OPV), a well-studied molecular wire, is sensitive to nitroaromatic molecules. In order to be able use molecules in molecular electronic devices though it is necessary to be able to control their switching between the on and off state. Preliminary work has attempted to understand how voltage-induced switching works in bipyridyl-dinitro oligophenylene ethynylene dithiol (BPDN). The subsequent step is to look at integrating these molecules into functional devices. One proposed way for integrating conducting molecules into functional devices is to form networks of densely-packed gold nanoparticles and molecular wires between metal electrodes on insulating substrates. This design requires that nanoparticles be spaced closely enough together otherwise molecular wires will fail to bind between neighbouring nanoparticles thus decreasing device efficiency. Biomolecules have proven to be excellent templates for self-assembly and offer the advantage of being able to work under mild, aqueous conditions. Two examples are peptides and viruses. Peptides are known to provide excellent control over the size, shape and assembly of inorganic materials. Their activity can further be enhanced by fusing two different functional domains together to form a fusion peptide which is multifunctional in nature. Viruses are highly desirable templates for self-assembly for a variety of reasons including their monodispersity and well-defined shapes. The tobacco mosaic virus is one such example and its coat protein is capable of forming different assemblies depending on pH and ionic strength. One assembly of interest is the 20S disk which is 18 nm in diameter. In this work the Flg-A3 peptide was first used to form gold nanoparticles which can form stable aggregates upon interaction with metal ions. These aggregates are then bound in high density to silicon dioxide surfaces using the A3-QBP1 peptides. The Flg-A3 gold nanoparticles were also covalently bound to tobacco mosaic virus disks with the hopes of eventually being able to increase the size of the aggregates that it forms. The gold nanoparticles were covalently bound to the N terminus of this structure which is located on the circumference of the disk for further studies of their aggregation properties.The final step focused on making functional devices from oligophenylene vinylene and these gold nanoparticle networks formed using fusion peptides. The nanoparticle networks were plated on silicon dioxide substrates with lithographically-defined gold electrodes. They were treated with ultraviolet ozone cleaning in order to remove the peptide prior to using these films for electrical measurements with oligophenylene vinylene. " --