Organic Molecular Crystals

Author : Edgar A. Silinsh
Publisher : Springer Science & Business Media
ISBN 13 : 3642814646
Total Pages : 404 pages
Book Rating : 4.48/5 ( download)

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Download or read book Organic Molecular Crystals written by Edgar A. Silinsh and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the results of many years of experimental work by the author and his colleagues, dealing with the electronic properties of organic crystals. E. Silinsh has played a leading role in pOinting out the importance of the polarization energy by an excess carrier, in determining not only the character of the carrier mobility in organic crystals, but in determining the band gap and the nature of the all-important trapping site in these crystals. The one-electron model of electronic conductivity that has been so successful in dealing with inorganic semiconductors is singular ly unsuccessful in rationalizing the unusual physical properties of organic crystals. A many-body theory is required, and the experimental manifestation of this is the central role played by the crystal polarization enerqies in transferring the results obtained with the isolated molecule, to the solid. The careful studies of E. Silinsh in this field have shown tn detail how this polarization energy develops around the excess carrier (and also the hole-electron pair) sitting on a molecular site in the crystal. As with all insulators, trapping sites playa dominant role in reducing the magnitude of ~he current that can theoretically pass through the organic crystal. It is usually the case that these trapping sites are energetically distributed within the forbidden band of the crystal. For many years, an exponential distribution has shown itself to be useful and reasonably correct: However,' E.

Author : Markus Schwoerer
Publisher : John Wiley & Sons
ISBN 13 : 352761866X
Total Pages : 438 pages
Book Rating : 4.68/5 ( download)

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Download or read book Organic Molecular Solids written by Markus Schwoerer and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive textbook on the physical aspects of organic solids. All phenomena which are necessary in order to understand modern technical applications are being dealt with in a way which makes the concepts of the topics accessible for students. The chapters - from the basics, production and characterization of organic solids and layers to organic semiconductors, superconductors and opto-electronical applications - have been arranged in a logical and well thought-out order.

Author : E. Silin̦š
Publisher : American Institute of Physics
ISBN 13 :
Total Pages : 466 pages
Book Rating : 4.53/5 ( download)

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Download or read book Organic Molecular Crystals written by E. Silin̦š and published by American Institute of Physics. This book was released on 1994 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Market: Specialists, researchers, and students in solid-state physics, materials science, electronics, chemical physics, organic and physical chemistry, and molecular biophysics. This monograph focuses on the interaction processes of excitons and charge carriers with the local environment, including the polarization and localization phenomena and the formation of polaronic quasi- particles. Transport phenomena are discussed and directly correlated with interaction dynamics, which actually determine the time- and temperature-dependent transiton of charge carriers and excitons from a coherent to a diffusive mode of motion.

Author : William Jones
Publisher : CRC Press
ISBN 13 : 9781420049343
Total Pages : 444 pages
Book Rating : 4.48/5 ( download)

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Download or read book Organic Molecular Solids written by William Jones and published by CRC Press. This book was released on 2019-09-17 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in organic molecular solids extends to a range of fields including chemistry, physics, electrical engineering, and materials science. In chemistry, it applies to such topics as solid state reactivity, crystal engineering, theoretical approaches to crystal structure determination, and morphology control. In physics, electrical engineering, and materials science, the possibility of producing organic-based materials (such as crystals, polymers, thin films, or liquid crystals) with potential electronic, opto-electronic, and magnetic uses is a major area of current research interest throughout the world. Organic Molecular Solids examines the uses of organic-based materials over a wide range of applications and interests. Each chapter surveys a relevant topic, providing appropriate introductory background information and modern developments.

Author : Angelo Gavezzotti
Publisher : Elsevier
ISBN 13 : 0128237481
Total Pages : 304 pages
Book Rating : 4.89/5 ( download)

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Download or read book The Crystalline States of Organic Compounds written by Angelo Gavezzotti and published by Elsevier. This book was released on 2021-11-25 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Crystalline States of Organic Compounds is a broad survey of the techniques by which molecular crystals are investigated, modeled, and applied, starting with the fundamentals of intra- and intermolecular bonding supplemented by a concise tutorial on present-day diffraction methods, then proceeding to an examination of crystallographic databases with their statistics and of such fundamental and fast-growing topics as intermolecular potentials, polymorphism, co-crystallization, and crystal structure prediction by computer. A substantial part of the book is devoted to the techniques of choice in modern simulation, Monte Carlo and molecular dynamics, with their most recent developments and application to formed crystals and to the concomitant phases involved in nucleation and growth. Drawing on the decades-long experience of its author in teaching and research in the field of organic solid state, The Crystalline States of Organic Compounds is an indispensable source of key insights and future directions for students and researchers at any level, in academia and in industry. Condenses theoretical information and practical methods in a single resource Provides a guide on the use of crystallographic databases, structure statistics, and molecular simulations Includes a large number of worked examples and tutorials, with extensive graphics and multimedia

Author : D.S. Chemla
Publisher : Elsevier
ISBN 13 : 0323148158
Total Pages : 497 pages
Book Rating : 4.53/5 ( download)

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Download or read book Nonlinear Optical Properties of Organic Molecules and Crystals V1 written by D.S. Chemla and published by Elsevier. This book was released on 2012-12-02 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Optical Properties of Organic Molecules and Crystals, Volume 1 discusses the nonlinear optical effects in organic molecules and crystals, providing a classical distinction between quadratic and cubic processes. This book begins with a general overview of the basic properties of organic matter, followed by a review on the benefits derived from quantum-chemistry-based models and growth and characterization of high quality, bulk organic crystals and waveguided structures. A case study focusing on a specific material, namely urea, which exemplifies a situation in which transparency in the UV region has been purposely traded for nonlinear efficiency is also deliberated. This text concludes with a description of a type of trade-off between the unpredictable orientation of molecules in crystalline media, polarity of liquid-crystalline structures, and dominant electronic contribution to the electro-optic effect. This publication is beneficial to solid-state physicists and chemists concerned with nonlinear optical properties of organic molecules and crystals.

Author : Joel Bernstein
Publisher : Oxford University Press
ISBN 13 : 0198506058
Total Pages : 429 pages
Book Rating : 4.58/5 ( download)

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Download or read book Polymorphism in Molecular Crystals written by Joel Bernstein and published by Oxford University Press. This book was released on 2002 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymorphism - the multiplicity of structures or forms - is a term that is used in many disciplines. In chemistry it refers to the existence of more than one crystal structure for a particular chemical substance. The properties of a substance are determined by its composition and by its structure. In the last two decades, there has been a sharp rise in the interest in polymorphic systems, as an intrinsically interesting phenomenon and as an increasingly important component in the development and marketing of a variety of materials based on organic molecules (e.g. pharmaceuticals, dyes and pigments, explosives, etc.). This book summarizes and brings up to date the current knowledge and understanding of polymorphism of molecular crystals, and concentrates it in one comprehensive source. The book will be an invaluable reference for students, researchers, and professionals in the field.

Author : Jordi Fraxedas
Publisher : Cambridge University Press
ISBN 13 : 0521834465
Total Pages : 307 pages
Book Rating : 4.69/5 ( download)

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Download or read book Molecular Organic Materials written by Jordi Fraxedas and published by Cambridge University Press. This book was released on 2006-04-27 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: A useful introduction to the field of molecular organic materials for beginners and experienced chemists, physicists and material scientists.

Author : Jack D. Dunitz
Publisher : Wiley-VCH
ISBN 13 :
Total Pages : 520 pages
Book Rating : 4.62/5 ( download)

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Download or read book X-ray Analysis and the Structure of Organic Molecules written by Jack D. Dunitz and published by Wiley-VCH. This book was released on 1995 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the second corrected reprint of â2X-Ray Analysisâ2, published in 1979 and consists of two parts. Part one is about Crystal Structure Analysis, part two deals with Molecular Structure. All the information in this volume is of considerable value especially to those engaged in, or about to embark upon, X-ray crystal structure analysis.

Author : Norbert Karl
Publisher : Springer Science & Business Media
ISBN 13 : 3642762530
Total Pages : 169 pages
Book Rating : 4.36/5 ( download)

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Download or read book Organic Crystals I: Characterization written by Norbert Karl and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lattice defects of organic molecular crystals affect their optical or electrical properties by changing the local energy structure. Lattice defects also playa very important role in the chemical and physical properties, for example, as an active site of a catalyst or an initiating point of a solid state reaction. However, very little has been reported on the defect structure of real organic crystals. In the past ten years it became clear that the origin and the structure of the defects depend on the geometrical and chemical nature of the building units of the crystal, the molecules. Molecular size, form and anisotropy, charge distribution, etc. cause the characteristic structure of the defect. Accordingly, a defect structure found in one compound may not be found in others. The defect structure of an organic crystal cannot be defined solely by the displacement of the molecular center from the normal lattice site. A rotational displacement of a molecule is frequently accompanied by a parallel shift of the molecular center. In addition to the usual geometrical crystallographic defects, chemical defects are important too which originate, for example, from differences in the substitution sites of molecules carrying side groups. In order to reveal such defect structures, direct imaging of molecules by high resolution electron microscopy is the only direct method.