Download or read book Organic Light Emitting Materials and Devices IX written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Organic Light emitting Materials and Devices IX written by Zakya H. Kafafi and published by Society of Photo Optical. This book was released on 2005-01-01 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes Proceedings Vol. 7821

Download or read book Organic Light Emitting Materials and Devices written by Zhigang Rick Li and published by CRC Press. This book was released on 2017-12-19 with total page 731 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic Light-Emitting Materials and Devices provides a single source of information covering all aspects of OLEDs, including the systematic investigation of organic light-emitting materials, device physics and engineering, and manufacturing and performance measurement techniques. This Second Edition is a compilation of the advances made in recent years and of the challenges facing the future development of OLED technology. Featuring chapters authored by internationally recognized academic and industrial experts, this authoritative text: Introduces the history, fundamental physics, and potential applications of OLEDs Reviews the synthesis, properties, and device performance of electroluminescent materials used in OLEDs Reflects the current state of molecular design, exemplifying more than 600 light-emitting polymers and highlighting the most efficient materials and devices Explores small molecules-based OLEDs, detailing hole- and electron-injection and electron-transport materials, electron- and hole-blocking materials, sensitizers, and fluorescent and phosphorescent light-emitting materials Describes solution-processable phosphorescent polymer LEDs, energy transfer processes, polarized OLEDs, anode materials, and vapor deposition manufacturing techniques employed in OLED fabrication Discusses flexible display, the backplane circuit technology for organic light-emitting displays, and the latest microstructural characterization and performance measurement techniques Contains abundant diagrams, device configurations, and molecular structures clearly illutrating the presented ideas Organic Light-Emitting Materials and Devices, Second Edition offers a comprehensive overview of the OLED field and can serve as a primary reference for those needing additional information in any particular subarea of organic electroluminescence. This book should attract the attention of materials scientists, synthetic chemists, solid-state physicists, and electronic device engineers, as well as industrial managers and patent lawyers engaged in OLED-related business areas.

Download or read book Organic Light Emitting Materials and Devices written by Zhigang Li and published by CRC Press. This book was released on 2006-09-12 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: New advances offer flexible, low-cost fabrication methods for light-emitting materials, particularly in display technologies. As researchers continue to develop novel applications for these materials, feasible solutions for large-scale manufacturing are increasingly important. Organic Light-Emitting Materials and Devices covers all aspects o

Download or read book New Molecular Organic Materials and Their Use in Organic Light Emitting Devices written by Xiaofan Ren and published by . This book was released on 2004 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Organic Light emitting Materials and Devices written by and published by . This book was released on 1998 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Handbook of Advanced Electronic and Photonic Materials and Devices Ten Volume Set written by Hari Singh Nalwa and published by Academic Press. This book was released on 2000-10-09 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 1: Semiconductors;Vol. 2: Semiconductors Devices;Vol. 3: High-Tc Superconductors and Organic Conductors; Vol. 4: Ferroelectrics and Dielectrics; Vol. 5: Chalcogenide Glasses and Sol-Gel Materials; Vol. 6 Nanostructured Materials; Vol. 7: Liquid Crystals, Display and Laser Materials; Vol. 8: Conducting Polymers; Vol. 9: Nonlinear Optical Materials; Volume 10: Light-Emitting Diodes, Lithium Batteries and Polymer Devices

Download or read book OLED Fundamentals written by Daniel J. Gaspar and published by CRC Press. This book was released on 2015-05-15 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Comprehensive Source for Taking on the Next Stage of OLED R&DOLED Fundamentals: Materials, Devices, and Processing of Organic Light-Emitting Diodes brings together key topics across the field of organic light-emitting diodes (OLEDs), from fundamental chemistry and physics to practical materials science and engineering aspects to design and ma

Download or read book Organic Photovoltaics written by Christoph Brabec and published by John Wiley & Sons. This book was released on 2011-09-22 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing complementary viewpoints from academia as well as technology companies, this book covers the three most important aspects of successful device design: materials, device physics, and manufacturing technologies. It also offers an insight into commercialization concerns, such as packaging technologies, system integration, reel-to-reel large scale manufacturing issues and production costs. With an introduction by Nobel Laureate Alan Heeger.

Download or read book TOWARDS OPTIMIZATION OF DEVICE written by Ping-Kuen Daniel Tsang and published by Open Dissertation Press. This book was released on 2017-01-26 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Towards Optimization of Device Performance in Organic Light Emitting Diodes and Organic Photovoltaics via Architecture Modification" by Ping-kuen, Daniel, Tsang, 曾秉權, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Organic light emitting diodes (OLEDs) and organic photovoltaic devices (OPVs) have particularly attracted enormous attention over other organic electronics due to their potential for displays and solid-state lighting as well as to provide renewable and clean energy. However, their relative low power efficiencies and short lifetime hamper their applications for commercialization. This thesis focuses on the optimization of OLEDs and OPVs through novel device structures. Particular attention is paid to three aspects: i) the employment of different interlayers and utilization of mixed triplet host systems for improving the performance of blue-emitting phosphorescent OLEDs (PHOLEDs); ii) systematic studies on the effects of various non-absorbing organic materials or fluorescent dyes as donors on the photovoltaic responses of OPV devices with modified bulk heterojunction; and iii) the influences of different exciton blocking layers (EBLs) or anode buffer layers on the photovoltaic responses of OPV devices. Firstly, a simple means for improving device performance of blue-emitting PHOLEDs by inserting an interlayer between hole-transporting layer and emissive layer was demonstrated. It was found that the insertion of interlayers with higher triplet energies could effectively enhance the efficiencies of blue-emitting PHOLEDs. High external quantum efficiencies (EQE) of 7.6% and 10.9% could be achieved for devices with 1,3-bis(carbazol-9-yl)benzene (mCP) and 4,4',4"-tris(N-carbazolyl)triphenylamine (TCTA) interlayers, higher than that without the interlayer ( 4.5%). On the other hand, device performance deteriorated with the insertion of 4,4'-bis(carbazol-9- yl)biphenyl (CBP) interlayer. The findings suggested the importance of triplet energy and matched highest occupied molecular orbital (HOMO) levels for achieving highly efficient blue-emitting PHOLEDs. Utilization of mixed triplet host systems for improving efficiencies and reducing power consumption of blue-emitting PHOLEDs was attempted. Device efficiency was found to be dependent on both energy levels and the composition of triplet host materials in the emissive layer. The introduction of hole-transporting TCTA yielded high current and power efficiencies of 47.4 cd/A and 37.3 lm/W. Doping of electrontransporting 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl)-1,2,4-triazole (TAZ) into mixed host system resulted in a poor device performance. The transient phosphorescence decays studies suggested a shorter lifetime of triplet excitons in the TAZ-doped thin films may be the reason for the relatively low device efficiencies. The influences of different non-absorbing organic materials or fluorescent dyes as donors on the photovoltaic responses of OPV devices with modified bulk heterojunction were studied. It was surprising that the employment of very low donor concentration of 5% leaded to a dramatic change on the photovoltaic responses. A three-fold increase in the ISC and a large VOC of up to 0.95 V could be obtained when a hole-transporting material or fluorescent dye was doped into fullerene matrix. A better charge carrier mobility in EBL might account for the performance improvement. Finally, the interplay of different EBLs and anode buffer layers were systematically investigated. Photovoltaic responses could be significantly improved by using EBL

Download or read book Advanced Functional Materials and Devices written by Saluru Baba Krupanidhi and published by Springer Nature. This book was released on 2021-12-02 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the select proceedings of the International Conference on Advanced Functional Materials and Devices (AFMD 2021). It highlights the advancements in area of functional materials which includes electronic, magnetic, optical, adaptive and dielectric materials that are required to develop new functionalities with better performance in this new era of technology. The topics covered include materials for energy harvesting, biomedical applications, environmental monitoring, photonics and optoelectronic devices, strategic applications and high energy physics. This book will be a useful reference for beginners, researchers, academicians and professionals working in the area of material science and its allied fields.

Download or read book Organic Light Emitting Devices written by Klaus Müllen and published by John Wiley & Sons. This book was released on 2006-05-12 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This high-class book reflects a decade of intense research, culminating in excellent successes over the last few years. The contributions from both academia as well as the industry leaders combine the fundamentals and latest research results with application know-how and examples of functioning displays. As a result, all the four important aspects of OLEDs are covered: - syntheses of the organic materials - physical theory of electroluminescence and device efficiency - device conception and construction - characterization of both materials and devices. The whole is naturally rounded off with a look at what the future holds in store. The editor, Klaus Muellen, is director of the highly prestigious MPI for polymer research in Mainz, Germany, while the authors include Nobel Laureate Alan Heeger, one of the most notable founders of the field, Richard Friend, as well as Ching Tang, Eastman Kodak's number-one OLED researcher, known throughout the entire community for his key publications.

Download or read book Silicon containing Organic Conjugated Materials for Light Emitting Diodes written by Colin William Keyworth and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis contains a study of polymer light emitting diodes (PLEDs) for commercial use within blue organic light-emitting diode (OLED) display technologies. The introduction chapter outlines the aims and synthetic strategies / targets employed during the research and gives background information as to the historical development of OLEDs and PLEDs. The first chapter of research involves the synthesis of several alternating co-polymers of dibenzosilole (a previously reported monomer used in light emitting devices), along with the prerequisite monomers. These co-polymers have been fully characterised and their optoelectronic properties evaluated. The energy levels of the co-polymers (HOMO / LUMO) were measured, then compared with each other and used to establish correlations between these values and the use of co-monomers and the polymer backbone linearity. By tuning the energy levels of conjugated polymers, it is possible to alter both the energy of the light emitted (and therefore the colour) and also improve the charge-injection balance within the OLED device, thereby improving lifetimes and performance. This research was primarily concerned with blue light-emission, therefore these energy level studies were conducted with a view to achieving blue light emission with the desired CIE coordinates and luminance. The novel co-polymers were used to fabricate several prototype OLED devices and the performance of these has been evaluated. The second chapter of research contains a study of several novel silicon-containing monomer structures, for incorporation into conjugated PLEDs. The first structure is a disilaanthracene derivative and the attempted synthesis of this monomer is reported. The other two monomers are based on spirosilabifluorene and the syntheses and full characterisations are reported. Attempts at the coupling of these monomers were made, using several different known coupling reactions including Suzuki, Stille and Kumada. The attempted coupling products were simple trimers, using 9,9-dioctylfluorene as a co-monomer. These were to be used in small molecule organic light-emitting diodes (SMOLEDs). The outcomes of these coupling reactions are described.

Download or read book Electrophosphorescent Materials for Use in Organic Light Emitting Devices written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface and Interface Science Volumes 9 and 10 written by Klaus Wandelt and published by John Wiley & Sons. This book was released on 2020-03-30 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: In ten volumes, this unique handbook covers all fundamental aspects of surface and interface science and offers a comprehensive overview of this research area for scientists working in the field, as well as an introduction for newcomers. Volume 1: Concepts and Methods Volume 2: Properties of Elemental Surfaces Volume 3: Properties of Composite Surfaces: Alloys, Compounds, Semiconductors Volume 4: Solid-Solid Interfaces and Thin Films Volume 5: Solid-Gas Interfaces I Volume 6: Solid-Gas Interfaces II Volume 7: Liquid and Biological Interfaces Volume 8: Interfacial Electrochemistry Volume 9: Applications of Surface Science I Volume 10: Applications of Surface Science II Content of Volumes 8 & 9: * Surface Analytics with X-Ray Photoelectron and Auger Electron Spectroscopy on Coated Steel Sheets * Applications of Graphene * Industrial Heterogeneous Catalysis * Automotive Catalysis * High-Throughput Heterogeneous Catalyst Research, Development, Scale-Up, and Production Support * Industrial Separation of Insulating Particles: Triboelectric Charging * Friction: Friend and Foe * Surface Science and Flotation * Application of Surface Science to Corrosion * Electrons, Electrodes, and the Transformation of Organic Molecules * Self-Cleaning Surfaces: From Fundamental Aspect to Real Technical Applications * Thin Films: Sputtering, PVD Methods and Applications * Wafer Bonding * Superconformal Deposition * Spintronics: Surface and Interface Aspects * Device Efficiency of Organic Light-Emitting Diodes * Dye-Sensitized Solar Cells * Electronic Nose: Current Status and Future Trends * Surface Science in Batteries * Surface and Interface Science in Fuel Cells Research

Download or read book Organic Light Emitting Diodes OLEDs written by Alastair Buckley and published by Elsevier. This book was released on 2013-08-31 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic light-emitting diodes (OLEDs) are opening up exciting new applications in the area of lighting and displays. OLEDs are self emissive and by careful materials and device design can generate colours across the visible spectrum. Together with simple monolithic fabrication on a range of different substrates, these diverse material properties give OLEDs key advantages over existing display and lighting technology. This important book summarises key research on materials, engineering and the range of applications of these versatile materials.Part one covers materials for OLEDs. Chapters review conjugated polymers, transparent conducting thin films, iridium complexes and phosphorescent materials. Part two discusses the operation and engineering of OLED devices. Chapters discuss topics such as highly efficient pin-type OLEDs, amorphous organic semiconductors, nanostructuring techniques, light extraction, colour tuning, printing techniques, fluorenone defects and disruptive characteristics as well as durability issues. Part three explores the applications of OLEDs in displays and solid-state lighting. Applications discussed include displays, microdisplays and transparent OLEDs, sensors and large-area OLED lighting panels.Organic light-emitting diodes (OLEDs) is a standard reference for engineers working in lighting, display technology and the consumer electronics sectors, as well as those researching OLEDs. Summarises key research on the materials, engineering and applications of OLEDs Reviews conjugated polymers, transparent conducting thin films Considers nanostructuring OLEDS for increasing levels of efficiency