The Exciplex

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The Exciplex

Author : Michael Gordon
Publisher : Elsevier
ISBN 13 : 0323152864
Total Pages : 385 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis The Exciplex by : Michael Gordon

Download or read book The Exciplex written by Michael Gordon and published by Elsevier. This book was released on 2012-12-02 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Exciplex contains the proceedings of the International Exciplex Conference held at the University of Western Ontario, on May 28-31, 1974. The papers explore various aspects of exciplex behavior and cover topics ranging from singlet- and triplet-state exciplexes to the photophysics of aromatic excimers. Electron-transfer reactions in multicomponent systems are also considered, along with intramolecular triplet-state charge-transfer interactions in aminoketones. Comprised of 15 chapters, this book opens with an overview of the photochemistry of excimers and exciplexes, followed by a discussion on singlet- and triplet-state exciplexes and the photophysics of aromatic excimers. Experimental results on intersystem crossing and ionic recombination processes are then presented, and electronic structures as well as dynamical behavior of some exciplex systems are described. The next chapters focus on excimers of hydrogen and acetone; complexes of dipolar excited states and small polar molecules; electron transfer and exciplex formation from triplet states of anthracene and metalloporphyrins; and exciplexes in electrogenerated chemiluminescence. The final chapter is devoted to intramolecular triplet-state charge-transfer interactions in aminoketones. This monograph will be of interest to chemists and physicists.

Polymer Photophysics Photochemistry

Author : James Guillet
Publisher : CUP Archive
ISBN 13 : 9780521347839
Total Pages : 420 pages
Book Rating : 4.3/5 (478 download)

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Book Synopsis Polymer Photophysics Photochemistry by : James Guillet

Download or read book Polymer Photophysics Photochemistry written by James Guillet and published by CUP Archive. This book was released on 1985 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to photochemistry and photophysics. Polymer structure and reactivity. Diffusion and permeability in polymers. Determination of scission and crosslinking in polymers. Photoprocesses in solid polymer matrices. Fluorescence. Excimers and exciplexes. Phosphorescence. Energy transfer and migration in polymers. Photochemistry of carbonyl-containing polymers. Photopolymerization. Photocyclization. Miscellaneous photoprocesses. Photo- and radiation chemistry of polymers.

Molecular Orientation and Emission Characteristics of Ir Complexes and Exciplex in Organic Thin Films

Author : Chang-Ki Moon
Publisher : Springer
ISBN 13 : 9811360553
Total Pages : 76 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Molecular Orientation and Emission Characteristics of Ir Complexes and Exciplex in Organic Thin Films by : Chang-Ki Moon

Download or read book Molecular Orientation and Emission Characteristics of Ir Complexes and Exciplex in Organic Thin Films written by Chang-Ki Moon and published by Springer. This book was released on 2019-01-29 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis considers molecular orientation in thin films and introduces an optical model describing this orientation as applied to organic light-emitting diodes (OLEDs). It also describes the electronic structure of intermolecular charge transfer excitons correlated to molecular orientation in solids. It has long been known that molecular orientation influences the electrical and optical properties of molecular films. One notable example is in liquid crystals where rigid rod or disk shaped molecules are commonly used. Understanding the origin of the molecular orientation and its control by surface treatment and electric field resulted in the development of liquid crystal displays. The same thing has happened in organic electronics, and considerable effort has been devoted to understanding and controlling molecular orientation in solid films to improve charge carrier mobility and light absorption, ultimately to improve the performance of organic solar cells and thin film transistors. In contrast, less attention has been paid to molecular orientation and its influence on the characteristics of OLEDs, probably because of the use of amorphous films rather than micro-crystalline films, and it is only in recent years that some molecular films are known to have preferred orientation. This thesis addresses this topic, focusing on OLEDs, describing the origin and control of the orientation of phosphorescent Ir complexes possessing spherical shape rather than rod or disk shape, the simulation of the optical characteristics of OLEDs influenced by preferred molecular orientation, and finally the orientation of intermolecular charge transfer excitons and its correlation to electronic structures in thin films.

Energy Transfer in Macromolecules

Author : Nikolaĭ Lazarevich Vekshin
Publisher : SPIE Press
ISBN 13 : 9780819420817
Total Pages : 178 pages
Book Rating : 4.4/5 (28 download)

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Book Synopsis Energy Transfer in Macromolecules by : Nikolaĭ Lazarevich Vekshin

Download or read book Energy Transfer in Macromolecules written by Nikolaĭ Lazarevich Vekshin and published by SPIE Press. This book was released on 1997 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of energy transfer mechanisms and luminescence measurements of efficiency of electronic excitation energy transfer in synthetic bichromophoric molecules, polymers and bio-polymers. It is devoted mainly to contradictions and alternative viewpoints.

Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes (TADF-OLEDs)

Author : Lian Duan
Publisher : Woodhead Publishing
ISBN 13 : 0128227737
Total Pages : 490 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes (TADF-OLEDs) by : Lian Duan

Download or read book Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes (TADF-OLEDs) written by Lian Duan and published by Woodhead Publishing. This book was released on 2021-10-15 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes (TADF-OLEDs) comprehensively introduces the history of TADF, along with a review of fundamental concepts. Then, TADF emitters with different colors, such as blue, green, red and NIR as well as white OLEDs are discussed in detail. Other sections cover exciplex-type TADF materials, emerging application of TADF emitters as a host in OLEDs, and applications of TADF materials in organic lasers and biosensing. Discusses green, blue, red, NIR and white TADF emitters and their design strategies for improved performance for light-emitting diode applications Addresses emerging materials, such as molecular and exciplex-based TADF materials Includes emerging applications like lasers and biosensors

Electron Transfer

Author : Joshua Jortner
Publisher : John Wiley & Sons
ISBN 13 : 0470142197
Total Pages : 759 pages
Book Rating : 4.4/5 (71 download)

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Book Synopsis Electron Transfer by : Joshua Jortner

Download or read book Electron Transfer written by Joshua Jortner and published by John Wiley & Sons. This book was released on 2009-09-09 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: an integrated approach to electron transfer phenomena This two-part stand-alone volume in the prestigious Advances in Chemical Physics series provides the most comprehensive overview of electron transfer science today. It draws on cutting-edge research from diverse areas of chemistry, physics, and biology-covering the most recent developments in the field, and pointing to important future trends. This second volume offers the following sections: * Solvent control, including ultrafast solvation dynamics and related topics * Ultrafast electron transfer and coherence effects * Molecular electronics * Electron transfer and exciplex chemistry * Biomolecules-from electron transfer tubes to kinetics in a DNA environment Part One addresses the historical perspective, electron transfer phenomena in isolated molecules and clusters, general theory, and electron transfer kinetics in bridged compounds. Electron transfer science has seen tremendous progress in recent years. Technological innovations, most notably the advent of femtosecond lasers, now permit the real-time investigation of intramolecular and intermolecular electron transfer processes on a time scale of nuclear motion. New scientific information abounds, illuminating the processes of energy acquisition, storage, and disposal in large molecules, clusters, condensed phase, and biophysical systems. Electron Transfer: From Isolated Molecules to Biomolecules is the first book devoted to the exciting work being done in nonradiative electron transfer dynamics today. This two-part edited volume emphasizes the interdisciplinary nature of the field, bringing together the contributions of pioneers in chemistry, physics, and biology. Both theoretical and experimental topics are featured. The authors describe modern approaches to the exploration of different systems, including supersonic beam techniques, femtosecond laser spectroscopy, chemical syntheses, and methods in genetic and chemical engineering. They examine applications in such areas as supersonic jets, solvents, electrodes, semi- conductors, respiratory and enzymatic protein systems, photosynthesis, and more. They also relate electron transfer and radiationless transitions theory to pertinent physical phenomena, and provide a conceptual framework for the different processes. Complete with over two hundred illustrations, Part Two opens with solvent control issues, including electron transfer reactions and ultrafast solvation dynamics. Other topics include ultrafast electron transfer and coherence effects, molecular electronics, and electron transfer in exciplex chemistry. This volume concludes with a section on biomolecules-from electron transfer tubes to experimental electron transfer and transport in DNA. Timely, comprehensive, and authoritative, Electron Transfer: From Isolated Molecules to Biomolecules is an essential resource for physical chemists, molecular physicists, and researchers working in nonradiative dynamics today.

Handbook Of Porphyrin Science: With Applications To Chemistry, Physics, Materials Science, Engineering, Biology And Medicine (Volumes 41-44)

Download Handbook Of Porphyrin Science: With Applications To Chemistry, Physics, Materials Science, Engineering, Biology And Medicine (Volumes 41-44) PDF Online Free

Author : Karl M Kadish
Publisher : World Scientific
ISBN 13 : 9813143541
Total Pages : 1590 pages
Book Rating : 4.8/5 (131 download)

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Book Synopsis Handbook Of Porphyrin Science: With Applications To Chemistry, Physics, Materials Science, Engineering, Biology And Medicine (Volumes 41-44) by : Karl M Kadish

Download or read book Handbook Of Porphyrin Science: With Applications To Chemistry, Physics, Materials Science, Engineering, Biology And Medicine (Volumes 41-44) written by Karl M Kadish and published by World Scientific. This book was released on 2016-07-01 with total page 1590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Porphyrins, phthalocyanines and their numerous analogs and derivatives are materials of tremendous importance in chemistry, materials science, physics, biology and medicine. They comprise the red color in blood (heme) and the green in leaves (chlorophyll); they are also excellent ligands that can coordinate with almost every metal in the Periodic Table. Grounded in natural systems, porphyrins are incredibly versatile and can be modified in many ways; each new modification yields derivatives demonstrating new chemistry, physics and biology, with a vast array of medicinal and technical applications.Because porphyrins are currently employed as platforms for study of theoretical principles and applications in a wide variety of fields, the Handbook of Porphyrin Science represents a timely ongoing series dealing in detail with the synthesis, chemistry, physicochemical and medical properties and applications of polypyrrole macrocycles. It is noteworthy that every year, new applications for tetrapyrrole ligands are developed and exploited.Professors Karl Kadish, Kevin Smith and Roger Guilard are internationally recognized experts in the research field of porphyrinoids, each having his own separate but complementary area of expertise in the field. Between them, they have published over 1750 peer-reviewed papers and jointly edited more than 55 books on diverse topics related to porphyrins and phthalocyanines. In assembling the set of new volumes of this unique handbook, they have selected and attracted the very best scientists in each sub-discipline as contributing authors.The Handbook of Porphyrin Science will prove to be a modern authoritative treatise on the subject as it continues as a collection of up-to-date works by world-renowned experts in the field. Complete with hundreds of figures, tables and structural formulas, and thousands of literature citations, all researchers and graduate students in this field will find it to be an essential, major reference source now, and for many years to come.

Light-Emitting Electrochemical Cells

Author : Rubén D. Costa
Publisher : Springer
ISBN 13 : 3319586130
Total Pages : 371 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Light-Emitting Electrochemical Cells by : Rubén D. Costa

Download or read book Light-Emitting Electrochemical Cells written by Rubén D. Costa and published by Springer. This book was released on 2017-07-31 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the recent achievements towards the next generation of Light-emitting electrochemical cells (LEC). Its first part focus on the definition, history and mechanism of LEC, going then to concepts and challenges and, finally, giving the reader examples of current application of new electroluminescent materials. The chapters are written by different international groups working on LEC.

Understanding and Manipulating Excited-State Processes

Author : V. Ramamurthy
Publisher : CRC Press
ISBN 13 : 148229463X
Total Pages : 718 pages
Book Rating : 4.4/5 (822 download)

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Book Synopsis Understanding and Manipulating Excited-State Processes by : V. Ramamurthy

Download or read book Understanding and Manipulating Excited-State Processes written by V. Ramamurthy and published by CRC Press. This book was released on 2001-08-21 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art review of original research, this book includes discussions of intramolecular photoadditoin of nucleophiles, electrophiles, and radical species to the activated aromatic ring; new methods for regio-, anantio-, and diastereoselective photooxygenations involving singlet oxygen mechanisms; and applications of microreactors for photo

Highly Efficient OLEDs

Author : Hartmut Yersin
Publisher : John Wiley & Sons
ISBN 13 : 3527339000
Total Pages : 604 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis Highly Efficient OLEDs by : Hartmut Yersin

Download or read book Highly Efficient OLEDs written by Hartmut Yersin and published by John Wiley & Sons. This book was released on 2019-01-04 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The essential resource that offers a comprehensive understanding of OLED optimizations Highly Efficient OLEDs. Materials Based on Thermally Activated Delayed Fluorescence (TADF) offers substantial information on the working principle of OLEDs and on new types of emitting materials (organic and inorganic). As the authors explain, OLEDs that use the Singlet-Harvesting mechanism based on the molecular property of TADF work according to a new exciton harvesting principle. Thus, low-cost emitter materials, such as Cu(I) or Ag(I) complexes as well as metal-free organic molecules, have the potential to replace high-cost rare metal complexes being currently applied in OLED technology. With contributions from an international panel of experts on the topic, the text shows how the application of new TADF materials allow for the development of efficient OLED displays and lighting systems. This new mechanism is the gateway to the third-generation of luminescent materials. This important resource: Offers a state-of-the-art compilation of the latest results in the dynamically developing field of OLED materials Is edited by a pioneer in the field of OLED material technology Contains a detailed application-oriented guide to new low-cost materials for displays and lighting Puts the focus on the emerging fields of OLED technology Written for materials scientists, solid state chemists, solid state physicists, and electronics engineers, Highly Efficient OLEDs. Materials Based on Thermally Activated Delayed Fluorescence offers a comprehensive resource to the latest advances of OLEDs based on new TADF materials.

Handbook of Nanomaterials for Manufacturing Applications

Author : Chaudhery Mustansar Hussain
Publisher : Elsevier
ISBN 13 : 0128213825
Total Pages : 526 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Handbook of Nanomaterials for Manufacturing Applications by : Chaudhery Mustansar Hussain

Download or read book Handbook of Nanomaterials for Manufacturing Applications written by Chaudhery Mustansar Hussain and published by Elsevier. This book was released on 2020-04-12 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Nanomaterials for Manufacturing Applications covers the challenges and obstacles involved in using nanomaterials in manufacturing. In particular, the lack of information, the possibility of adverse impacts on the environment, human health, safety and sustainability and other remaining challenges. This book addresses these challenges for the use of nanomaterials in major manufacturing sectors and suggests how they may be overcome. It was written to summarize, in a one-stop, concise manner, how nanomaterials and nanotechnology are being used to enhance current manufacturing techniques and processes in order to create more sustainable products in a range of industry sectors. This book will be of great use to materials scientists and engineers who are looking to gain a greater understanding on how nanotechnology is being used to improve the products we use in our daily lives. Demonstrates how cutting-edge developments in nanomaterials are being used to make more efficient manufacturing processes in a range of industry sectors Explores how using nanomaterials can help engineers create innovative consumer products Discusses the legal, economic and toxicity issues arising from using nanomaterials in manufacturing processes

A New Generation of Organic Light-Emitting Materials and Devices

Author : Shi-Jian Su
Publisher : Frontiers Media SA
ISBN 13 : 288963163X
Total Pages : 144 pages
Book Rating : 4.8/5 (896 download)

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Book Synopsis A New Generation of Organic Light-Emitting Materials and Devices by : Shi-Jian Su

Download or read book A New Generation of Organic Light-Emitting Materials and Devices written by Shi-Jian Su and published by Frontiers Media SA. This book was released on 2019-11-27 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the invention of the first efficient organic light-emitting diodes (OLEDs) by C. T. Tang and S. VanSlyke, OLEDs have attracted close interest as a promising candidate for next-generation full-color displays and future solid-state lighting sources because of a number of advantages like high brightness and contrast, high luminous efficiency, fast response time, wide viewing angle, low power consumption, and light weight. The recombination of holes and electrons under electrical excitation typically generates 25% singlet excitons and 75% triplet excitons. For traditional fluorescent OLEDs, only 25% singlet excitons can be utilized to emit light, while the other 75% triplet excitons are generally wasted through nonradiative transition. By adopting noble metal phosphorescent complexes, an internal quantum efficiency (IQE) of 100% could be achieved by utilizing both the 25% singlet excitons and 75% triplet excitons. However, these phosphors usually contain nonrenewable and highcost iridium or platinum noble metals. Most recently, unity IQE has been readily achieved through noble metal-free purely organic emitters, such as thermally activated delayed fluorescence (TADF) emitters, hybridized local and charge-transfer state (HLCT) “hot exciton” emitters, binary- or ternary-mixed donor-acceptor exciplex emitters, and neutral p radical emitters, etc. In addition, the combination of conventional p-type hole-transport and n-type electron-transport materials in an appropriate device structure can also provide an uncommon efficiency. Both strategies are essential and attractive for high-performance and low-cost full-color displays and white OLED applications. This Research Topic mainly focus on this new generation of organic light-emitting materials and devices, including design, synthesis, and characterization of light-emitting organic molecules with tunable excited states, and their structural, electrical, and photophysical properties. Contributions relating to carrier transporting materials and corresponding device engineering are also included. Two mini reviews and thirteen original research articles by recognized academic experts in their respective fields are collected in this Research Topic, which will offer a broad perspective of noble metal-free organic light emitters, including conventional fluorescent emitters, TADF emitters, HLCT emitters, exciplex emitters, aggregation-induced emission (AIE) luminogens, and their corresponding devices. We believe this eBook should attract the attention of multidisciplinary researchers in the fields of materials science, organic synthesis, and electronic device engineering, especially for those engaged in OLED-related areas.

Lasers in Polymer Science and Technology

Author : Jan F. Rabek
Publisher : CRC Press
ISBN 13 : 9780849348440
Total Pages : 332 pages
Book Rating : 4.3/5 (484 download)

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Book Synopsis Lasers in Polymer Science and Technology by : Jan F. Rabek

Download or read book Lasers in Polymer Science and Technology written by Jan F. Rabek and published by CRC Press. This book was released on 1989-11-30 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this 4-volume book is to examine some of the applications of lasers in polymer science and technology. Now available for the first time, up-to-date information on this fascinating subject is compiled and presented in compact form. This book focuses on current research and developments in the application of lasers in polymer and biopolymer chemistry. It includes experimental and theoretical details, apparatus, techniques, and applications. This book is a useful source for researchers, students, polymer chemists, and physicists involved in this astonishing field of high technology.

Electrochemistry and Photochemistry

Author : Shunichi Fukuzumi
Publisher : The Electrochemical Society
ISBN 13 : 9781566772754
Total Pages : 344 pages
Book Rating : 4.7/5 (727 download)

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Book Synopsis Electrochemistry and Photochemistry by : Shunichi Fukuzumi

Download or read book Electrochemistry and Photochemistry written by Shunichi Fukuzumi and published by The Electrochemical Society. This book was released on 2000 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Organic Photochemistry

Author : V. Ramamurthy
Publisher : CRC Press
ISBN 13 : 1000612120
Total Pages : 612 pages
Book Rating : 4.0/5 (6 download)

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Book Synopsis Organic Photochemistry by : V. Ramamurthy

Download or read book Organic Photochemistry written by V. Ramamurthy and published by CRC Press. This book was released on 1997-06-26 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Features surveys of all areas of organic, inorganic, physical and biological photochemistry. The text serves as a source of scientific findings pertinent to chemistry and biochemistry. It addresses the state of developments in the field, employing reviews of active research, including recent innovations, techniques and applications.

Advances in Physical Organic Chemistry

Author :
Publisher : Academic Press
ISBN 13 : 0080581587
Total Pages : 466 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Advances in Physical Organic Chemistry by :

Download or read book Advances in Physical Organic Chemistry written by and published by Academic Press. This book was released on 1982-12-30 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Physical Organic Chemistry

Photonics of Biopolymers

Author : Nikolai L. Vekshin
Publisher : Springer Science & Business Media
ISBN 13 : 3662049473
Total Pages : 239 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Photonics of Biopolymers by : Nikolai L. Vekshin

Download or read book Photonics of Biopolymers written by Nikolai L. Vekshin and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonics of biopolymers discusses the processes of energy transformation in photoexcited proteins, nucleic acids, membranes and model systems. The author addresses, among other topics: Light absorption, screening and reabsorption; photometric studies of protein; energy transfer mechanics; fluorescent probes; photomodulation of enzymes, and photoactiviation. Much of the information stems from the author's own wide experience in the field.