Download or read book Nanoscale Properties of Conjugated Polymers by Scanning Probe Microscopy written by Chunhong Lei and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanoscale Properties of Conjugated Polymers by Scanning Proble Microoscopy written by Chunhong Lei and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanoscopic Studies of Conjugated Polymer Blends by electric Scanning Probe Microscopy written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated polymers and conjugated polymer blends have attracted great interest due to their potential applications in biosensors and organic electronics. The sub-100 nm morphology of these materials is known to heavily influence their electromechanical properties and the performance of devices they are part of. Electromechanical properties include charge injection, transport, recombination, and trapping, the phase behavior and the mechanical robustness of polymers and blends. Electrical scanning probe microscopy techniques are ideal tools to measure simultaneously electric (conductivity and surface potential) and dielectric (dielectric constant) properties, surface morphology, and mechanical properties of thin films of conjugated polymers and their blends.rnIn this thesis, I first present a combined topography, Kelvin probe force microscopy (KPFM), and scanning conductive torsion mode microscopy (SCTMM) study on a gold/polystyrene model system. This system is a mimic for conjugated polymer blends where conductive domains (gold nanoparticles) are embedded in a non-conductive matrix (polystyrene film), like for polypyrrole:polystyrene sulfonate (PPy:PSS), and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). I controlled the nanoscale morphology of the model by varying the distribution of gold nanoparticles in the polystyrene films. I studied the influence of different morphologies on the surface potential measured by KPFM and on the conductivity measured by SCTMM. By the knowledge I gained from analyzing the data of the model system I was able to predict the nanostructure of a homemade PPy:PSS blend.rnThe morphologic, electric, and dielectric properties of water based conjugated polymer blends, e.g. PPy:PSS or PEDOT:PSS, are known to be influenced by their water content. These properties also influence the macroscopic performance when the polymer blends are employed in a device. In the second part I therefore present an in situ humidity-dependence.
Download or read book Conjugated Polymers at Nanoscale written by Karen K. Gleason and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-08-23 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscale control of order and orientation is essential for optimizing the performance of conjugated polymers. These semi-crystalline materials enable flexible devices for electronic, optical, electrochemical, and thermoelectric applications and are also of interest for the emerging fields of bioelectronics and spintronics.
Download or read book Optical Properties of Functional Polymers and Nano Engineering Applications written by Vaibhav Jain and published by CRC Press. This book was released on 2018-09-03 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive text provides a basic introduction to the optical properties of polymers, as well as a systematic overview of the latest developments in their nano engineering applications—including L-GRIN lenses, 3D holographic displays, optical gene detection, and more. Covering an increasingly important class of materials relevant not only in academic research but also in industry, this book emphasizes the importance of nano engineering in improving the fundamental optical properties of the functional polymers, elaborating on high-level research while thoroughly explaining the underlying principles.
Download or read book Scanning Probe Microscopy in Nanoscience and Nanotechnology 3 written by Bharat Bhushan and published by Springer Science & Business Media. This book was released on 2012-10-24 with total page 634 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 Scanning Probe Microscopies Beyond Imaging written by Paolo Samorì and published by John Wiley & Sons. This book was released on 2006-08-21 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first book to focus on the use of SPMs to actively manipulate molecules and nanostructures on surfaces goes way beyond conventional treatments of scanning microscopy merely for imaging purposes. It reviews recent progress in the use of SPMs on such soft materials as polymers, with a particular emphasis on chemical discrimination, mechanical properties, tip-induced reactions and manipulations, as well as their nanoscale electrical properties. Detailing the practical application potential of this hot topic, this book is of great interest to specialists of wide-ranging disciplines, including physicists, chemists, materials scientists, spectroscopy experts, surface scientists, and engineers.
Download or read book Studies of Novel Chemical and Physical Properties for Nanoscale Conjugated Polymers written by Xiaoyu Wang and published by . This book was released on 2007 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sub diffraction Limited Morphology Characterization in Single Noble Metal Nanoparticles and Single Conjugated Polymer Chains Using Optical Microscopy Techniques written by Katherine Amelia Koen and published by . This book was released on 2015 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the nanoscale, materials exhibit special properties not present in the bulk, which may be exploited in diverse applications that include catalysis, sensing, and energy harvest and transfer. Due to their small size, nanoscale materials also present a characterization challenge, because optical microscopy techniques cannot resolve images of structural features smaller than finite lenses may focus visible light. Optical images of nanoparticles or single molecules show diffraction-limited spots with radii of approximately half the wavelength of the light used to interrogate them, and the underlying structure of the nanoscale object is not obvious to the eye. Fortunately, manipulation of excitation conditions and image processing techniques can tease out information about the morphology of nanomaterials investigated. The first example presented in this dissertation shows how an asymmetric excitation geometry and polarization spectroscopy elucidate the orientation of single silver triangular nanoprisms in the plane of an optical microscope’s stage. Characterizing this orientation using optical microscopy techniques opens possibilities for post-characterization nanoparticle functionalization and improved amplification of surface-enhanced spectroscopy signals. Electron microscopy may characterize single noble metal nanoparticles if one is unconcerned with those benefits, but electron microscopy investigations are more challenging for soft matter samples, so optical characterization becomes even more appealing for polymer studies. Bias-induced centroid (BIC) spectroscopy, correlated with polarization spectroscopy, reports not only on the distance over which highly ordered single poly[2-methoxy-5-(2’-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) chains transfer energy, but also that the rod-like structures these polymers are believed to adopt are likely to transfer this energy along their longitudinal axes. BIC relies on observable changes in the position of the fluorescence centroid, but when the bias-induced hole-injection partially quenching the fluorescence occurs symmetrically, the displacement of the fluorescence centroid is small, and defining the displacement direction becomes difficult. In this event, analysis of the ellipticity of the diffraction-limited images of the MEH-PPV fluorescence also supports the conclusion that the polymer transfers energy in the direction of the longitudinal axis of the rod-like structure. Taken together, these wide-field optical techniques allow simultaneous morphological characterization of many single nanoparticles or single polymer chains without appealing to scanning probe or electron microscopies, which can damage the sample or prevent post-characterization modification.
Download or read book Nanoscale Characterization of Surface modified and Surface grafted Polymers Using Environmental Control Scanning Microscopy written by Donna Renee Staarup and published by . This book was released on 2002 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Probe Microscopy written by Vijay Nalladega and published by BoD – Books on Demand. This book was released on 2012-04-27 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning probe microscopy (SPM) is one of the key enabling tools for the advancement for nanotechnology with applications in many interdisciplinary research areas. This book presents selected original research works on the application of scanning probe microscopy techniques for the characterization of physical properties of different materials at the nanoscale. The topics in the book range from surface morphology analysis of thin film structures, oxide thin layers and superconducting structures, novel scanning probe microscopy techniques for characterization of mechanical and electrical properties, evaluation of mechanical and tribological properties of hybrid coatings and thin films. The variety of topics chosen for the book underlines the strong interdisciplinary nature of the research work in the field of scanning probe microscopy.
Download or read book Scanning Probe Microscopy of Conjugated Polymers written by Stephen Francis Bond and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Probe Microscopy of Soft Matter written by Vladimir V. Tsukruk and published by John Wiley & Sons. This book was released on 2012-01-09 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: Well-structured and adopting a pedagogical approach, this self-contained monograph covers the fundamentals of scanning probe microscopy, showing how to use the techniques for investigating physical and chemical properties on the nanoscale and how they can be used for a wide range of soft materials. It concludes with a section on the latest techniques in nanomanipulation and patterning. This first book to focus on the applications is a must-have for both newcomers and established researchers using scanning probe microscopy in soft matter research. From the contents: * Atomic Force Microscopy and Other Advanced Imaging Modes * Probing of Mechanical, Thermal Chemical and Electrical Properties * Amorphous, Poorly Ordered and Organized Polymeric Materials * Langmuir-Blodgett and Layer-by-Layer Structures * Multi-Component Polymer Systems and Fibers * Colloids and Microcapsules * Biomaterials and Biological Structures * Nanolithography with Intrusive AFM Tipand Dip-Pen Nanolithography * Microcantilever-Based Sensors
Download or read book Gei Gz written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Scanning Probe Microscopy of Polymers written by I. Meisel and published by Wiley-VCH. This book was released on 2001-08-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The symposium "Recent Advances in Scanning Probe Microscopy of Polymers" held during the 220th American Chemical Society National Meeting in Washington DC in August 2000 focused on the latest advances in applications of SPM techniques for the study of polymeric and organic materials. The main topics consisted of SPM imaging of polymer morphology and microstructure, microtribological properties of polymers, micromechanical probing of polymers, microthermal imaging, studies of ultrathin and molecular organic and polymeric films, modeling of tip-surface interactions, chemical compositional analysis of heterogeneous materials, and SPM applications to industrial polymers. This volume of Macromolecular Symposia will be a valuable guide in the field of contemporary SPM studies of polymeric materials.
Download or read book Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications written by Srabanti Ghosh and published by John Wiley & Sons. This book was released on 2021-03-16 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: A timely overview of fundamental and advanced topics of conjugated polymer nanostructures Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications is a comprehensive reference on conjugated polymers for energy applications. Distinguished academic and editor Srabanti Ghosh offers readers a broad overview of the synthesis, characterization, and energy-related applications of nanostructures based on conjugated polymers. The book includes novel approaches and presents an interdisciplinary perspective rooted in the interfacing of polymer and synthetic chemistry, materials science, organic chemistry, and analytical chemistry. This book provides complete descriptions of conjugated polymer nanostructures and polymer-based hybrid materials for energy conversion, water splitting, and the degradation of organic pollutants. Photovoltaics, solar cells, and energy storage devices such as supercapacitors, lithium ion battery electrodes, and their associated technologies are discussed, as well. Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications covers both the fundamental topics and the most recent advances in this rapidly developing area, including: The design and characterization of conjugated polymer nanostructures, including the template-free and chemical synthesis of polymer nanostructures Conjugated polymer nanostructures for solar energy conversion and environmental protection, including the use of conjugated polymer-based nanocomposites as photocatalysts Conjugated polymer nanostructures for energy storage, including the use of nanocomposites as electrode materials The presentation of different and novel methods of utilizing conjugated polymer nanostructures for energy applications Perfect for materials scientists, polymer chemists, and physical chemists, Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications also belongs on the bookshelves of organic chemists and any other practicing researchers, academics, or professionals whose work touches on these highly versatile and useful structures.
Download or read book Nanostructured Conductive Polymers written by Ali Eftekhari and published by John Wiley & Sons. This book was released on 2011-07-07 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a vital link between nanotechnology and conductive polymers, this book covers advances in topics of this interdisciplinary area. In each chapter, there is a discussion of current research issues while reviewing the background of the topic. The selection of topics and contributors from around the globe make this text an outstanding resource for researchers involved in the field of nanomaterials or polymer materials design. The book is divided into three sections: From Conductive Polymers to Nanotechnology, Synthesis and Characterization, and Applications.