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.

Download or read book Growth of Crystals written by A. V. Shubnikov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume in the present series contained the papers read at the first conference on crystal growth. This second volume appears during the interval between the first and second conferences, and contains various papers on crystal growth, in addition to the late S. K. Popov's major contribution on growing synthetic corundum. The papers to some extent represent work that has been done in the USSR since the first conference. Some of the papers break entirely fresh ground. We hope that the series will act as a means of contact between Soviet scientists who work on crystal growth, or on producing technically important monocrystals. This contact between scientists is essential. Work on this important topic cannot advance unless such con tact is brought about. A. V. Shubnikov and N. N. Sheftal' vii 1. THEORETICAL AND EXPERIMENTAL INVESTIGATIONS THE THERMODYNAMICS OF CRYSTALLIZATION PRESSURE V. Ya. Khaimov-Mal'kov It has often [1-14] been observed that crystals growing in a medium containing foreign particles repel the particles as well as trap them. Our photographs (Figs. 1,2, and 3) show such repulsion. Lavalle [4] was the first to notice the effect in 1853. There is as yet no agreement in explanation for the effects, nor is there any agree l ment in data onthe pressures that may occur. Somegive values of 10 kg/ cm or so [3-5. 10], others only a few g/cmt [6,7,12,14]. The latter value has been adopted in monographs on crystal growth [l3, 15].

Download or read book The Crystal Structures of Some Thorium and Uranium Compounds written by Norman Charles Baenziger and published by . This book was released on 1951 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemistry and metallurgy of thorium and uranium were investigated extensively by workers on the Manhattan Project during the past few years. These investigations were pursued by all available scientific methods. Among these, the X-ray diffraction method provided a powerful tool for phase identification and structure determination, which greatly assisted in the solution of the metallurgical and chemical problems. Isostructural compounds with the composition U6M (where M = Mn, Fe, Co, and Ni) have been found and the structure determined. Single crystals, examined by the rotation, oscillation, Laue, and Weissenberg methods, exhibited the diffraction of D4h - 4/mmm.

Download or read book Spectroscopy of Defects in Organic Crystals written by N.I. Ostapenko and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectroscopy of Defects in Organic Crystals presents a masterly summary of the widespread and voluminous literature on the subject, presenting theoretical and experimental investigations of electron and vibronic optical spectra of organic crystals. Electronic states of defects combine to form crystal near-to-band and band levels. These are discrete states in the vicinity of exciton bands, surface and dislocational excitons, etc. Some studies have expressed dissimilar or even conflicting opinions about the nature of observed phenomena. In the choice of the material, preference has been given to phenomena which have received a theoretical interpretation. Some attention is paid to observations which are not completely understood and also to effects predicted but not yet confirmed. The monograph will be useful for scientists as well as undergraduate and postgraduate students of solid state physics.

Download or read book Cooley s Cyclopaedia of Practical Receipts written by Cooley and published by . This book was released on 1892 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Springer Handbook of Crystal Growth written by Govindhan Dhanaraj and published by Springer Science & Business Media. This book was released on 2010-10-20 with total page 1823 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the years, many successful attempts have been chapters in this part describe the well-known processes made to describe the art and science of crystal growth, such as Czochralski, Kyropoulos, Bridgman, and o- and many review articles, monographs, symposium v- ing zone, and focus speci cally on recent advances in umes, and handbooks have been published to present improving these methodologies such as application of comprehensive reviews of the advances made in this magnetic elds, orientation of the growth axis, intro- eld. These publications are testament to the grow- duction of a pedestal, and shaped growth. They also ing interest in both bulk and thin- lm crystals because cover a wide range of materials from silicon and III–V of their electronic, optical, mechanical, microstructural, compounds to oxides and uorides. and other properties, and their diverse scienti c and The third part, Part C of the book, focuses on - technological applications. Indeed, most modern ad- lution growth. The various aspects of hydrothermal vances in semiconductor and optical devices would growth are discussed in two chapters, while three other not have been possible without the development of chapters present an overview of the nonlinear and laser many elemental, binary, ternary, and other compound crystals, KTP and KDP. The knowledge on the effect of crystals of varying properties and large sizes. The gravity on solution growth is presented through a c- literature devoted to basic understanding of growth parison of growth on Earth versus in a microgravity mechanisms, defect formation, and growth processes environment.

Download or read book The Theory and Practice of Scintillation Counting written by J. B. Birks and published by Elsevier. This book was released on 2013-10-22 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Theory and Practice of Scintillation Counting is a comprehensive account of the theory and practice of scintillation counting. This text covers the study of the scintillation process, which is concerned with the interactions of radiation and matter; the design of the scintillation counter; and the wide range of applications of scintillation counters in pure and applied science. The book is easy to read despite the complex nature of the subject it attempts to discuss. It is organized such that the first five chapters illustrate the fundamental concepts of scintillation counting. Chapters 6 to 10 detail the properties and applications of organic scintillators, while the next four chapters discuss inorganic scintillators. The last two chapters provide a review of some outstanding problems and a postscript. Nuclear physicists, radiation technologists, and postgraduate students of nuclear physics will find the book a good reference material.

Download or read book Nuclear Radiation Detectors written by S. S. Kapoor and published by New Age International. This book was released on 1986-04 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cooley s Cyclop dia of Practical Receipts and Collateral Information in the Arts Manufactures Professions and Trades written by Arnold James Cooley and published by . This book was released on 1892 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cooley s Cyclop dia of Practical Receipts and Collateral Information in the Arts Manufactures Professions and Trades Including Medicine Pharmacy and Domestic Economy written by Arnold James Cooley and published by . This book was released on 1892 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Theory of Molecular Excitons written by A. Davydov and published by Springer. This book was released on 2013-11-11 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Introduction to Organic Electronic Devices written by Guangye Zhang and published by Springer Nature. This book was released on 2022-10-13 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively describes organic electronic devices developed in the past decades. It not only covers the mainstream devices including organic light emitting diodes (OLEDs), organic photovoltaics (OPVs), and organic thin-film transistors (OTFTs) but also includes devices of recent interest such as organic immune transistors, organic photocatalysis devices, and themoelectrical devices. The book starts from the introduction of basic theory of organic semiconductor materials and devices, which acquaints the readers with the concepts of each type of device described in the following chapters. It also discusses the working principles, device layout, and fabrication process of these devices. The book is intended for undergraduate and postgraduate students who are interested in organic electronics, researchers/engineers working in the field of organic electronic devices/systems.

Download or read book Mechanically Responsive Materials for Soft Robotics written by Hideko Koshima and published by John Wiley & Sons. This book was released on 2020-02-18 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers a comprehensive review of the research and development of mechanically responsive materials and their applications in soft robots Mechanically Responsive Materials for Soft Robotics offers an authoritative guide to the current state of mechanically responsive materials for the development of soft robotics. With contributions from an international panel of experts, the book examines existing mechanically responsive materials such as crystals, polymers, gels, and composites that are stimulated by light and heat. The book also explores the application of mechanical materials to soft robotics. The authors describe the many excellent mechanical crystals developed in recent years that show the ability to bend, twist, rotate, jump, self-heal, and shape memory. Mechanical polymer materials are described for evolution into artificial muscles, photomobile materials, bioinspired soft actuators, inorganic-organic hybrid materials, multi-responsive composite materials, and strain sensor materials. The application of mechanical materials to soft robots is just the beginning. This book reviews the many challenging and versatile applications, such as soft microrobots made from photoresponsive elastomers, four-dimensional printing for assembling soft robots, self-growing of soft robots like plants, and biohybrid robots using muscle tissue. This important book: -Explores recent developments in the use of soft smart materials in robotic systems -Covers the full scope of mechanically responsive materials: polymers, crystals, gels, and nanocomposites -Deals with an interdisciplinary topic of advanced smart materials research -Contains extensive descriptions of current and future applications in soft robotics Written for materials scientists, polymer chemists, photochemists, physical chemists, solid state chemists, inorganic chemists, and robotics engineers, Mechanically Responsive Materials for Soft Robotics offers a comprehensive and timely review of the most recent research on mechanically responsive materials and the manufacture of soft robotics.

Download or read book OJI International Seminar on Organic Semiconductors written by H. Inokuchi and published by CRC Press. This book was released on 1989 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aromatic Polycyclic Hydrocarbons Advances in Research and Application 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aromatic Polycyclic Hydrocarbons: Advances in Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Aromatic Polycyclic Hydrocarbons. The editors have built Aromatic Polycyclic Hydrocarbons: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Aromatic Polycyclic Hydrocarbons in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Aromatic Polycyclic Hydrocarbons: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Download or read book Molecular Nano Dynamics written by Hiroshi Fukumura and published by John Wiley & Sons. This book was released on 2009-09-09 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: From artificial surfaces to living cells, Molecular Nano Dynamics, Vol. I and Vol. II explores more than 40 important methods for dynamic observation of the nanoscale. Edited by absolute science greats from Japan, this two-volume set covers all important aspects of this topic: nanoscale spectroscopy and characterization tools, nanostructure dynamics, single living cell dynamics, active surfaces, and single crystals. Destined to be the definitive reference work on nanoscale molecular dynamics and their observation for years to come, this is a must-have reference for chemists, physicists, physical chemists, theoretical chemists, and materials scientists.