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Self Assembled Organic Semiconductors
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Book Synopsis Self-Organized Organic Semiconductors by : Quan Li
Download or read book Self-Organized Organic Semiconductors written by Quan Li and published by John Wiley & Sons. This book was released on 2011-03-03 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the exciting topic on self-organized organic semiconductors – from materials to device applications. It offers up-to-date and accessible coverage of self-organized semiconductors for organic chemistry, polymer science, liquid crystals, materials science, material engineering, electrical engineering, chemical engineering, optics, optic-electronics, nanotechnology and semiconductors. Chapters cover chemistry, physics, processing, and characterization. The applications include photovoltaics, light-emitting diodes (LEDs), and transistors.
Book Synopsis Self-assembled Organic Semiconductors by : Lisa Renee Pattison
Download or read book Self-assembled Organic Semiconductors written by Lisa Renee Pattison and published by . This book was released on 2006 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this thesis work is to enhance the charge carrier mobility in organic semiconductors using self-assembly techniques. We discuss and demonstrate two different self-assembly mechanisms for organic semiconducting thin films. The first technique is to exploit the inherent self-alignment of liquid crystalline polymers. The second technique, graphoepitaxy, has been adopted from the processing of inorganic semiconductors. Graphoepitaxy utilizes surface topography to promote the oriented growth of crystals on amorphous substrates. In addition to studying the effects that self-assembly has on the structure of thin-films, we probe the effects of increased order on the electronic properties by the fabrication and characterization of organic thin film transistors. Most notably, we find that the charge carrier mobility is increased by a factor of 4-6 for aligned, liquid crystalline polymeric semiconductors and by a factor of 8-10 for small molecules oriented by graphoepitaxy.
Book Synopsis Self-Organized Organic Semiconductors by : Quan Li
Download or read book Self-Organized Organic Semiconductors written by Quan Li and published by Wiley. This book was released on 2011-04-26 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the exciting topic on self-organized organic semiconductors – from materials to device applications. It offers up-to-date and accessible coverage of self-organized semiconductors for organic chemistry, polymer science, liquid crystals, materials science, material engineering, electrical engineering, chemical engineering, optics, optic-electronics, nanotechnology and semiconductors. Chapters cover chemistry, physics, processing, and characterization. The applications include photovoltaics, light-emitting diodes (LEDs), and transistors.
Book Synopsis Organic Semiconductors for Self-assembled Monolayer Field Effect Transistors by : Kexin Lu
Download or read book Organic Semiconductors for Self-assembled Monolayer Field Effect Transistors written by Kexin Lu and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular self-assembly has recently attracted significant attention for possible application in organic electronic and optoelectronic devices, such as self-assembled monolayer field-effect transistors (SAMFETs) and functional self-assembled integrated circuits. Self-assembly combines the advantages of low temperature solution processability, regio-selective monolayer adsorption and nano-scale control of film thickness. Much progress has been made in improving device performance using self-assembled monolayers (SAMs). However, most SAMFET devices reported to date showed current modulation only with submicrometre channels, with low device yields and poor reproducibility as a result of limited lateral interconnection of the semiconducting layer. In an attempt to address these issues, this thesis presents an investigation of the synthesis and properties of conjugated SAM molecules for use as the charge transporting layer in SAMFETs. Chapter 1 gives a comprehensive introduction to SAM-based surface systems, organic semiconductors and their use in OFETs and SAMFETs. Chapter 2 discusses attempts to design and synthesise p-type conjugated molecules capable of self-assembly on oxide surfaces based on a phenylene-bithiophene semiconducting core. The optical and electrochemical properties, as well as the thermal behaviour of these molecules are studied in detail. This theme is carried over to Chapter 3, which describes the synthesis, chemical and physical characterisation of two families of n-type SAM molecules. These molecules consist of NTCDI cores with hexyl or cyclohexyl chains as end-capping groups. Incorporation of a selection of materials as the active layer in OFETs or SAMFETs to evaluate the charge transport is demonstrated in Chapter 4. Monolayer films based on p-type monochlorosilane-terminated SAM molecules are made using the solution assembly technique and characterised by contact angle and AFM. OFETs made from DH-PTTP by both thermal evaporation and spin coating show high mobilities comparable to the best values reported in the literature. Top-contact SAMFETs show a hole mobility of 1.1 × 10-3 cm2V-1s-1 in air, consistent with those of solution processed DH-PTTP based OFETs. Finally, an overview of the project and some suggestions for future work are presented in Chapter 5.
Book Synopsis Molecular Spintronics by : Marta Galbiati
Download or read book Molecular Spintronics written by Marta Galbiati and published by Springer. This book was released on 2015-10-15 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis targets molecular or organic spintronics and more particularly the spin polarization tailoring opportunities that arise from the ferromagnetic metal/molecule hybridization at interfaces: the new concept of spinterface. Molecular or organic spintronics is an emerging research field at the frontier between organic chemistry and spintronics. The manuscript is divided into three parts, the first of which introduces the basic concepts of spintronics and advantages that molecules can bring to this field. The state of the art on organic and molecular spintronics is also presented, with a special emphasis on the physics and experimental evidence for spinterfaces. The book’s second and third parts are dedicated to the two main experimental topics investigated in the thesis: Self-Assembled Monolayers (SAMs) and Organic Semiconductors (OSCs). The study of SAMs-based magnetic tunnel nanojunctions reveals the potential to modulate the properties of such devices “at will,” since each part of the molecule can be tuned independently like a “LEGO” building block. The study of Alq3-based spin valves reveals magnetoresistance effects at room temperature and is aimed at understanding the respective roles played by the two interfaces. Through the development of these systems, we demonstrate their potential for spintronics and provide a solid foundation for spin polarization engineering at the molecular level.
Book Synopsis Self-Assembled Organic Semiconductor Quantum Boxes and Wires from Block Copolymers by :
Download or read book Self-Assembled Organic Semiconductor Quantum Boxes and Wires from Block Copolymers written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low dimensional organic semiconductors such as quantum boxes, quantum wires, or superlattices are predicted to exhibit enhanced or novel electronic and optical properties for applications in solid state electronic and optoelectronic devices in ways similar to low dimensional inorganic semiconductors. However, the relatively small charge carrier and excition Bohr radii of organic semiconductors (ca. 1.0-1.5 nm) has heretofore made it difficult to prepare organic semiconductor heterostructures with quantum confinement effects. Ultrasmall semiconducting polymer quantum boxes and wires with confinement volumes of 1-2 nm3 have been prepared in our laboratory by self-organization of blends of ABA block conjugated copolymers with a parent homopolymer. Observation of new optical transitions, enhanced luminescence, and stability of luminescence at high electric fields confirmed the confinement of excitons in the organic quantum boxes and wires.
Author :Schinke Janusz Publisher :Sudwestdeutscher Verlag Fur Hochschulschriften AG ISBN 13 :9783838151441 Total Pages :204 pages Book Rating :4.1/5 (514 download)
Book Synopsis Processing and Characterization of Organic Thin Films by : Schinke Janusz
Download or read book Processing and Characterization of Organic Thin Films written by Schinke Janusz and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2015-08-20 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work deals with two of the major challenges in organic electronics: (i) the optimization of organic/inorganic contacts through interface engineering and (ii) the prevention of intermixing in multilayer solution-processed devices. (i) A suitable method to control organic/inorganic interfaces, not only in terms of interface energetics but also to control the morphology of subsequent layers is the use of self-assembled monolayers (SAMs). Various SAMs from commercially available precursor molecules have been investigated in detail with the aim to optimize the processing parameters for high-throughput fabrication. On the basis of the gained knowledge and experience SAMs composed of novel molecules with strong dipole moments were investigated. (ii) The second part of this work addresses the problem of intermixing of solution-processed thin films. To this end, the film formation was studied of n-type semiconductor materials based on 1,4,5,8-naphthalenetetracarboxdiimide (NDI) with additional thermally cleavable side groups that govern the solubility of the molecules. Both polymer and small molecule organic semiconductors were studied.
Book Synopsis Self-Assembled Organic-Inorganic Nanostructures by : Christian von Borczyskowski
Download or read book Self-Assembled Organic-Inorganic Nanostructures written by Christian von Borczyskowski and published by CRC Press. This book was released on 2017-03-27 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current state and perspectives in natural and life sciences are strongly linked to the development of novel complex organic-inorganic materials at various levels of organization, including semiconductor quantum dots (QDs) and QD-based nanostructures with unique optical and physico-chemical properties. This book provides a comprehensive description of the morphology and main physico-chemical properties of self-assembled inorganic-dye nanostructures as well as some applications in the field of nanotechnology. It crosses disciplines to examine essential nanoassembly principles of QD interaction with organic molecules, excited state dynamics in nanoobjects, theoretical models, and methodologies. Based on ensemble and single-nanoobject detection, the book quantitatively shows (for the first time on a series of nanoassemblies) that surface-mediated processes (formation of trap states) dictate the probability of several of the most interesting and potentially useful photophysical phenomena (FRET- or non-FRET-induced quenching of QD photoluminescence) observed for colloidal QDs and QD–dye nanoassemblies. Further, nanostructures can be generated by nanolithography and thereafter selectively decorated with dye molecules. A similar approach applies to natural nanosized surface heterogeneities.
Book Synopsis Directed Self Assembly of Organic Semiconductors in Different Dimensionalities by : Tobias Niko Krauss
Download or read book Directed Self Assembly of Organic Semiconductors in Different Dimensionalities written by Tobias Niko Krauss and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Functionalization of Organic Semiconductors and Other Carbon-based Materials by Self-assembled Monolayers (SAMs) and Charge Transport in Organic Field-effect Transistors (OFETs) by : Bumsu Lee
Download or read book Functionalization of Organic Semiconductors and Other Carbon-based Materials by Self-assembled Monolayers (SAMs) and Charge Transport in Organic Field-effect Transistors (OFETs) written by Bumsu Lee and published by . This book was released on 2012 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Self-Assembled Nanostructures of Biopolymers, Organic Semiconductors, and Inorganic Compounds by : H. Heinz
Download or read book Self-Assembled Nanostructures of Biopolymers, Organic Semiconductors, and Inorganic Compounds written by H. Heinz and published by Wiley. This book was released on 2014-09-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book explains the self-assembly of nanostructures derived from different materials classes for a broad range of applications. The starting materials comprise biomacromolecules, complex environments at cell surfaces, inorganic building blocks, and synthetic organic polymers. A team of leading experts focuses on the explanation of molecular recognition mechanisms at interfaces that enable control of driving forces for self-organization from the nanometer to the micrometer scale, including biotic-abiotic and inorganic-organic interfaces. The spectrum of topics includes signaling at cell membranes, biologically programmed mineralization of nanostructures, nano-designed building and transportation materials, as well as assembly of soft matter for energy conversion and electronic devices. Structure-property relationships of biological, medicinal, biomimetic, and functional materials from the nanoscale up will be supported by state-of-the-art synthesis, assembly, and characterization techniques, including recent developments in modeling and simulation. The book strives to balance fundamental concepts and emerging applications. The book shows parallels and differences between different fields such as bioengineering, inorganic chemistry, organic electronics, combinatorial materials design, modeling and theory.
Book Synopsis Self-Assembled Organic-Inorganic Nanostructures by : Christian von Borczyskowski
Download or read book Self-Assembled Organic-Inorganic Nanostructures written by Christian von Borczyskowski and published by CRC Press. This book was released on 2017-03-27 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current state and perspectives in natural and life sciences are strongly linked to the development of novel complex organic-inorganic materials at various levels of organization, including semiconductor quantum dots (QDs) and QD-based nanostructures with unique optical and physico-chemical properties. This book provides a comprehensive description of the morphology and main physico-chemical properties of self-assembled inorganic-dye nanostructures as well as some applications in the field of nanotechnology. It crosses disciplines to examine essential nanoassembly principles of QD interaction with organic molecules, excited state dynamics in nanoobjects, theoretical models, and methodologies. Based on ensemble and single-nanoobject detection, the book quantitatively shows (for the first time on a series of nanoassemblies) that surface-mediated processes (formation of trap states) dictate the probability of several of the most interesting and potentially useful photophysical phenomena (FRET- or non-FRET-induced quenching of QD photoluminescence) observed for colloidal QDs and QD–dye nanoassemblies. Further, nanostructures can be generated by nanolithography and thereafter selectively decorated with dye molecules. A similar approach applies to natural nanosized surface heterogeneities.
Book Synopsis Use of Self-assembled Monolayers in Organic Semiconductor Devices by :
Download or read book Use of Self-assembled Monolayers in Organic Semiconductor Devices written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organic Electronics by : Hagen Klauk
Download or read book Organic Electronics written by Hagen Klauk and published by John Wiley & Sons. This book was released on 2006-12-13 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited and written by the leading researchers and engineers from such companies as Philips, 3M, Xerox, Infineon, PlasticLogic, Eastman Kodak, Dupont, AIXTRON, and Hueck Folien, this book presents unrivalled and undiluted expertise from those who know best how to assess the risks, opportunities and where this technology is really heading. As such, this practical approach complements the more scientific and fundamentals-oriented literature on the market by providing readers with a first-hand insight into industrial activities to commercialize organic electronics. Following an introduction to the topic, including the history, motivation, benefits and potentials, it reviews recent advances and covers all three important facets of organic electronics: the chemical compounds and materials, manufacturing techniques, and the resulting devices together with their current applications.
Book Synopsis Control of Self-assembly of Organic Semiconductors by Solution Processing for Electronic Applications by : Ke Zhang
Download or read book Control of Self-assembly of Organic Semiconductors by Solution Processing for Electronic Applications written by Ke Zhang and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis, Properties and Supramolecular Self-assembly of Novel N-type Organic Semiconductors by : Nisha Verma
Download or read book Synthesis, Properties and Supramolecular Self-assembly of Novel N-type Organic Semiconductors written by Nisha Verma and published by . This book was released on 2013 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Self-Assembly by : Alex Li Dequan
Download or read book Molecular Self-Assembly written by Alex Li Dequan and published by CRC Press. This book was released on 2012-12-20 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past several decades, molecular self-assembly has emerged as one of the main themes in chemistry, biology, and materials science. This book compiles and details cutting-edge research in molecular assemblies ranging from self-organized peptide nanostructures and DNA-chromophore foldamers to supramolecular systems and metal-directed assemblies
