Primary Photoexcitations In Conjugated Polymers: Molecular Exciton Versus Semiconductor Band Model

Primary Photoexcitations In Conjugated Polymers: Molecular Exciton Versus Semiconductor Band Model PDF Author: Niyasi Serdar Sariciftci
Publisher: World Scientific
ISBN: 9814518212
Category : Science
Languages : en
Pages : 641

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Book Description
This volume concentrates on the controversy within the scientific community over how to explain, understand and describe the photophysics/photochemistry of this class of materials.This controvery is of such a fundamental nature that the solution of the problem might be in a unification of the semiconductor and metal physics with the molecular quantum chemistry. Thus, a wide-ranging and comprehensive discussion of this very crucial issue has not been written down yet.This volume brings together the most prominent scientists specializing in this controversial topic. Each contributor addresses the opponents' arguments. After short introductory chapters, the contributors discuss their own speciality area and compare the results with both models and explain their position on why one of the models is more appropriate. Special emphasis is given to comparative discussions with other conjugated molecular systems as well as inorganic semiconductors.

Electronic Processes in Organic Semiconductors

Electronic Processes in Organic Semiconductors PDF Author: Anna Köhler
Publisher: John Wiley & Sons
ISBN: 3527685146
Category : Technology & Engineering
Languages : en
Pages : 424

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Book Description
The first advanced textbook to provide a useful introduction in a brief, coherent and comprehensive way, with a focus on the fundamentals. After having read this book, students will be prepared to understand any of the many multi-authored books available in this field that discuss a particular aspect in more detail, and should also benefit from any of the textbooks in photochemistry or spectroscopy that concentrate on a particular mechanism. Based on a successful and well-proven lecture course given by one of the authors for many years, the book is clearly structured into four sections: electronic structure of organic semiconductors, charged and excited states in organic semiconductors, electronic and optical properties of organic semiconductors, and fundamentals of organic semiconductor devices.

Electronic Structure of Organic Semiconductors

Electronic Structure of Organic Semiconductors PDF Author: Luís Alcácer
Publisher: Morgan & Claypool Publishers
ISBN: 1643271687
Category : Technology & Engineering
Languages : en
Pages : 135

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Book Description
Written in the perspective of an experimental chemist, this book puts together some fundamentals from chemistry, solid state physics and quantum chemistry, to help with understanding and predicting the electronic and optical properties of organic semiconductors, both polymers and small molecules. The text is intended to assist graduate students and researchers in the field of organic electronics to use theory to design more efficient materials for organic electronic devices such as organic solar cells, light emitting diodes and field effect transistors. After addressing some basic topics in solid state physics, a comprehensive introduction to molecular orbitals and band theory leads to a description of computational methods based on Hartree-Fock and density functional theory (DFT), for predicting geometry conformations, frontier levels and energy band structures. Topological defects and transport and optical properties are then addressed, and one of the most commonly used transparent conducting polymers, PEDOT:PSS, is described in some detail as a case study.

Electrical Properties of Polymers

Electrical Properties of Polymers PDF Author: A. R. Blythe
Publisher: Cambridge University Press
ISBN: 9780521552196
Category : Science
Languages : en
Pages : 506

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Book Description
A comprehensive update on the fundamentals and recent advancements of electrical properties of polymers.

Organic Optoelectronics

Organic Optoelectronics PDF Author: Wenping Hu
Publisher: John Wiley & Sons
ISBN: 3527653473
Category : Technology & Engineering
Languages : en
Pages : 503

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Book Description
Written by internationally recognized experts in the field with academic as well as industrial experience, this book concisely yet systematically covers all aspects of the topic. The monograph focuses on the optoelectronic behavior of organic solids and their application in new optoelectronic devices. It covers organic field-effect and organic electroluminescent materials and devices, organic photonics, materials and devices, as well as organic solids in photo absorption and energy conversion. Much emphasis is laid on the preparation of functional materials and the fabrication of devices, from materials synthesis and purification, to physicochemical properties and the basic processes and working principles of the devices. The only book to cover fundamentals, applications, and the latest research results, this is a handy reference for both researchers and those new to the field. From the contents: * Electronic process in organic solids * Organic/polymeric semiconductors for field-effect transistors * Organic/polymeric field-effect transistors * Organic circuits and organic single molecular transistors * Polymer light-emitting Diodes (PLEDs): devices and materials * Organic solids for photonics * Organic photonic devices * Organic solar cells based on small molecules * Polymer solar cells * Dye-sensitized solar cells (DSSCs) * Organic thermoelectric power devices

Applied Photochemistry

Applied Photochemistry PDF Author: Rachel C. Evans
Publisher: Springer Science & Business Media
ISBN: 9048138302
Category : Science
Languages : en
Pages : 619

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Book Description
Applied Photochemistry encompasses the major applications of the chemical effects resulting from light absorption by atoms and molecules in chemistry, physics, medicine and engineering, and contains contributions from specialists in these key areas. Particular emphasis is placed both on how photochemistry contributes to these disciplines and on what the current developments are. The book starts with a general description of the interaction between light and matter, which provides the general background to photochemistry for non-specialists. The following chapters develop the general synthetic and mechanistic aspects of photochemistry as applied to both organic and inorganic materials, together with types of materials which are useful as light absorbers, emitters, sensitisers, etc. for a wide variety of applications. A detailed discussion is presented on the photochemical processes occurring in the Earth’s atmosphere, including discussion of important current aspects such as ozone depletion. Two important distinct, but interconnected, applications of photochemistry are in photocatalytic treatment of wastes and in solar energy conversion. Semiconductor photochemistry plays an important role in these and is discussed with reference to both of these areas. Free radicals and reactive oxygen species are of major importance in many chemical, biological and medical applications of photochemistry, and are discussed in depth. The following chapters discuss the relevance of using light in medicine, both with various types of phototherapy and in medical diagnostics. The development of optical sensors and probes is closely related to diagnostics, but is also relevant to many other applications, and is discussed separately. Important aspects of applied photochemistry in electronics and imaging, through processes such as photolithography, are discussed and it is shown how this is allowing the increasing miniaturisation of semiconductor devices for a wide variety of electronics applications and the development of nanometer scale devices. The final two chapters provide the basic ideas necessary to set up a photochemical laboratory and to characterise excited states. This book is aimed at those in science, engineering and medicine who are interested in applying photochemistry in a broad spectrum of areas. Each chapter has the basic theories and methods for its particular applications and directs the reader to the current, important literature in the field, making Applied Photochemistry suitable for both the novice and the experienced photochemist.

Proceedings of the Third International Conference on Excitonic Processes in Condensed Matter, EXCON '98

Proceedings of the Third International Conference on Excitonic Processes in Condensed Matter, EXCON '98 PDF Author: Richard T. Williams
Publisher: The Electrochemical Society
ISBN: 9781566772198
Category : Science
Languages : en
Pages : 594

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Book Description


Multiphoton and Light Driven Multielectron Processes in Organics: New Phenomena, Materials and Applications

Multiphoton and Light Driven Multielectron Processes in Organics: New Phenomena, Materials and Applications PDF Author: F. Kajzar
Publisher: Springer Science & Business Media
ISBN: 9401140561
Category : Science
Languages : en
Pages : 555

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Book Description
Proceedings of the NATO Advanced Research Workshop, Menton, France, 26-31 August, 1999

Ultrafast Dynamics and Laser Action of Organic Semiconductors

Ultrafast Dynamics and Laser Action of Organic Semiconductors PDF Author: Zeev Valy Vardeny
Publisher: CRC Press
ISBN: 142007282X
Category : Science
Languages : en
Pages : 324

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Book Description
Spurred on by extensive research in recent years, organic semiconductors are now used in an array of areas, such as organic light emitting diodes (OLEDs), photovoltaics, and other optoelectronics. In all of these novel applications, the photoexcitations in organic semiconductors play a vital role. Exploring the early stages of photoexcitations that

Unimolecular and Supramolecular Electronics I

Unimolecular and Supramolecular Electronics I PDF Author: Robert M. Metzger
Publisher: Springer Science & Business Media
ISBN: 3642272835
Category : Science
Languages : en
Pages : 317

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Book Description
Charge Transport in Organic Semiconductors, by Heinz Bässler and Anna Köhler. Frontiers of Organic Conductors and Superconductors, by Gunzi Saito and Yukihiro Yoshida. Fullerenes, Carbon Nanotubes, and Graphene for Molecular Electronics, by Julio R. Pinzón, Adrián Villalta-Cerdas and Luis Echegoyen. Current Challenges in Organic Photovoltaic Solar Energy Conversion, by Cody W. Schlenker and Mark E. Thompson.- Molecular Monolayers as Semiconducting Channels in Field Effect Transistors, by Cherie R. Kagan. Issues and Challenges in Vapor-Deposited Top Metal Contacts for Molecule-Based Electronic Devices, by Masato M. Maitani and David L. Allara. Spin Polarized Electron Tunneling and Magnetoresistance in Molecular Junctions, by Greg Szulczewski.