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Efficient Organic Light Emitting-Diodes (OLEDs)

Efficient Organic Light Emitting-Diodes (OLEDs)
A Book

by Yi-Lu Chang

  • Publisher : CRC Press
  • Release : 2015-08-03
  • Pages : 126
  • ISBN : 9814613819
  • Language : En, Es, Fr & De
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Following two decades of intense research globally, the organic light-emitting diode (OLED) has steadily emerged as the ultimate display technology of choice for the coming decades. Portable active matrix OLED displays have already become prevalent, and even large-sized ultra-high definition 4K TVs are being mass-produced. More exotic applications such as wearable displays have been commercialized recently. With the burgeoning success in displays, researchers are actively bringing the technology forward into the exciting solid-state lighting market. This book presents the knowledge needed for students and researchers from diverse disciplines to understand the underlying principles in OLED technology. It begins with a brief history and fundamental working principles of OLEDs. After introducing the fundamentals, it discusses more efficient OLED designs, as well as advanced strategies to enhance the performance. The text covers in detail important areas such as top-emission, p- and n-type doping, device stability, light extraction, and stacked white OLEDs. It also throws light on the current industry practice and major areas of focus in the near future.

Organic Light-emitting Diodes

Organic Light-emitting Diodes
Materials, Technology and Advantages

by Douglas Rivera

  • Publisher : Unknown Publisher
  • Release : 2015-12-01
  • Pages : 155
  • ISBN : 9781634840019
  • Language : En, Es, Fr & De
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Organic light-emitting diodes (OLEDs) are considered as the most promising technology for next generation display and solid-state lighting for their advantages such as surface emitting, ease for large area manufacturing, viability for flexible and transparent applications, low energy consumption and potential to be low-cost. Chapter one of this book discusses tandem OLEDs, which are technologically interesting because not only can the luminance and current efficiency be improved linearly with the number of electroluminescent (EL) units in the tandem OLED, but also leakage current and breakdown of the electric field can be avoided due to the higher luminance at a low current density and the thicker organic films, resulting in a long lifetime. Chapter two mainly deals with the low cost synthesis and characterisation of amino, amino-chloro, dichloro and trichloro substituted derivatives of diphenyl quinoline (DPQ). Chapter three aims at reporting the last strategies that have been developed to address the issue of roll-off.

Principles and Applications of Organic Light Emitting Diodes (OLEDs)

Principles and Applications of Organic Light Emitting Diodes (OLEDs)
A Book

by N. Thejo Kalyani,Hendrik Swart,S. J. Dhoble

  • Publisher : Woodhead Publishing
  • Release : 2017-05-15
  • Pages : 332
  • ISBN : 0081012497
  • Language : En, Es, Fr & De
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Principles and Applications of Organic Light Emitting Diodes (OLEDs)explores the ways in which the development of organic semiconductor materials is opening up new applications in electronic and optoelectronic luminescent devices. The book begins by covering the principles of luminescence and the luminescent properties of organic semiconductors. It then covers the development of luminescent materials for OLEDs, discussing the advantages and disadvantages of organic versus inorganic luminescent materials. The fabrication and characterization of OLEDs is also covered in detail, including information on, and comparisons of, vacuum deposition and solution techniques. Finally, applications of OLEDs are explored, including OLEDs in solid-state lighting, colored lighting, displays and potential future applications, such as ultra-thin and flexible technologies. This book is an excellent resource both for experts and newcomers to the field of organic optoelectronics and OLEDs. It is ideal for scientists working on optical devices, lighting, display and imaging technologies, and for all those engaged in research in photonics, luminescence and optical materials. Provides a one-stop guide to OLED technology for the benefit of newcomers to the field of organic optoelectronics Comprehensively covers the luminescent properties of organic semiconductors and their development into OLED materials Offers practical information on OLED fabrication and their applications in solid-state lighting and displays, making this essential reading for optoelectronics engineers and materials scientists

Organic Light-Emitting Diodes (OLEDs)

Organic Light-Emitting Diodes (OLEDs)
Materials, Devices and Applications

by Alastair Buckley

  • Publisher : Elsevier
  • Release : 2013-08-31
  • Pages : 666
  • ISBN : 0857098942
  • Language : En, Es, Fr & De
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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

Organic Light Emitting Diode

Organic Light Emitting Diode
A Book

by Marco Mazzeo

  • Publisher : BoD – Books on Demand
  • Release : 2010-08-18
  • Pages : 234
  • ISBN : 9533071400
  • Language : En, Es, Fr & De
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Organic light emitting diodes (OLEDs) have attracted enormous attention in the recent years because of their potential for flat panel displays and solid state lighting. This potential lies in the amazing flexibility offered by the synthesis of new organic compounds and by low-cost fabrication techniques, making these devices very promising for the market. The idea that flexible devices will replace standard objects such as television screens and lighting sources opens, indeed, a new scenario, where the research is very exciting and multidisciplinary. The aim of the present book is to give a comprehensive and up-to-date collection of contributions from leading experts in OLEDs. The subjects cover fields ranging from molecular and nanomaterials, used to increase the efficiency of the devices, to new technological perspectives in the realization of structures for high contrast organic displays and low-cost organic white light sources. The volume therefore presents a wide survey on the status and relevant trends in OLEDs research, thus being of interest to anyone active in this field. In addition, the present volume could also be used as a state-of-the-art introduction for young scientists.

Organic Light-Emitting Diodes

Organic Light-Emitting Diodes
Principles, Characteristics & Processes

by Jan Kalinowski

  • Publisher : CRC Press
  • Release : 2018-10-03
  • Pages : 480
  • ISBN : 1420030647
  • Language : En, Es, Fr & De
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Organic Light Emitting Diodes: Principles, Characteristics, and Processes presents recent developments in organic electroluminescence and their application to light emitting diodes. In six chapters and complete with an extensive set of references, it describes and illustrates the physical principles of organic LEDs and their electrical and optical characteristics with a wide range of examples and practical studies. The author presents a unified approach to the description and functioning of organic LEDs, based on a comprehensive background of relevant physical processes and provides a clear foundation for the prediction and design of new improved electroluminescent devices.

Organic Light Emitting Diodes

Organic Light Emitting Diodes
The Use of Rare Earth and Transition Metals

by Luiz F. R. Pereira

  • Publisher : CRC Press
  • Release : 2012-05-29
  • Pages : 350
  • ISBN : 9814267295
  • Language : En, Es, Fr & De
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This book addresses the development of OLEDs based on rare-earth and transition metal complexes, especially focusing on europium, terbium, ruthenium, and rhenium. The idea is to explain how these organic materials can be used to build OLEDs. Taking into account the actual state of the art and the expected pathways, the book proposes further developments in the field. It presents intensive experimental results for a better explanation. This book is meant for scientists and engineers who work in this new OLED framework. It also has didactic utility for graduation students and teachers working on optoelectronics.

OLED Fundamentals

OLED Fundamentals
Materials, Devices, and Processing of Organic Light-Emitting Diodes

by Daniel J. Gaspar,Evgueni Polikarpov

  • Publisher : CRC Press
  • Release : 2015-05-15
  • Pages : 494
  • ISBN : 1466515198
  • Language : En, Es, Fr & De
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A Comprehensive Source for Taking on the Next Stage of OLED R&D OLED 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 manufacturing factors. Experts from top academic institutions, industry, and national laboratories provide thorough, up-to-date coverage on the most useful materials, devices, and design and fabrication methods for high-efficiency lighting. The first part of the book covers all the construction materials of OLED devices, from substrate to encapsulation. For the first time in book form, the second part addresses challenges in devices and processing, including architectures and methods for new OLED lighting and display technologies. The book is suitable for a broad audience, including materials scientists, device physicists, synthetic chemists, and electrical engineers. It can also serve as an introduction for graduate students interested in applied aspects of photophysics and electrochemistry in organic thin films.

Organic Light Emitting Diode

Organic Light Emitting Diode
Material, Process and Devices

by Seung Hwan Ko

  • Publisher : IntechOpen
  • Release : 2011-07-27
  • Pages : 334
  • ISBN : 9789533072739
  • Language : En, Es, Fr & De
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This book contains a collection of latest research developments on Organic light emitting diodes (OLED). It is a promising new research area that has received a lot of attention in recent years. Here you will find interesting reports on cutting-edge science and technology related to materials, fabrication processes, and real device applications of OLEDs. I hope that the book will lead to systematization of OLED study, creation of new research field and further promotion of OLED technology for the bright future of our society.

A New Generation of Organic Light-Emitting Materials and Devices

A New Generation of Organic Light-Emitting Materials and Devices
A Book

by Shi-Jian Su,Lian Duan,Hisahiro Sasabe

  • Publisher : Frontiers Media SA
  • Release : 2019-11-27
  • Pages : 329
  • ISBN : 288963163X
  • Language : En, Es, Fr & De
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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.

Porphyrin Materials for Organic Light Emitting Diodes

Porphyrin Materials for Organic Light Emitting Diodes
A Book

by Brian Tuffy

  • Publisher : Brian Tuffy
  • Release : 2011-10
  • Pages : 104
  • ISBN : 384652669X
  • Language : En, Es, Fr & De
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Organic light emitting diode technology is evolving rapidly with commercial applications in recent years. OLED materials and design are moving into an advanced stage with optimising techniques becoming more important. This work presents the use of porphyrin materials for organic electronics, specifically for organic light emitting diodes using phosphorescent emission. The porphyrins show interesting photophysical properties which allow for an exploitation of the normally forbidden triplet energy states to achieve a significant enhancement in the device efficiency. This research presents a simple host-guest system where this concept is demonstrated. Various porphyrin structures are synthesised and tuned for OLED performance, from this, we can learn how chemical structure relates to the exciton dynamics and their resulting light emission. It is hoped that this work outlines a possible route to phosphorescent OLED technologies.

Organic Light-Emitting Diodes

Organic Light-Emitting Diodes
A Book

by Mingsheng Xu

  • Publisher : LAP Lambert Academic Publishing
  • Release : 2010-06
  • Pages : 148
  • ISBN : 9783838303642
  • Language : En, Es, Fr & De
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Organic light-emitting diode (OLED) technology is used in a variety of display applications, ranging from cell phones and MP3 to prototype TVs, and holds great promise for the production of highly efficient large-area light sources and flat panel displays. It has the potential to become a multibillion-dollar industry within a few years. The biggest technical challenge for OLEDs is the limited lifetime associated with elevated temperatures and exposure to moisture. The guaranteed hours of operation (15,000 hr) is currently inadequate for most TVs and replacement of LCDs with the 60,000 hr half-life. This book, therefore, investigated the thermal-activated and moisture-induced degradation pathways of small molecule - based prototype OLEDs as well as interfacial electronic properties at the nanoscale level through real-time visualization. The results should help shed some lights on improving luminescence efficiency and lifetime of OLEDs, and should be especially useful to professionals in research and development of not only OLED technology but other organic electronics, or anyone else who may be interested in plastic electronics.

Organic Light Emitting Devices

Organic Light Emitting Devices
Synthesis, Properties and Applications

by Klaus Müllen,Ullrich Scherf

  • Publisher : John Wiley & Sons
  • Release : 2006-05-12
  • Pages : 426
  • ISBN : 3527607234
  • Language : En, Es, Fr & De
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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.

Organic Light Emitting Diodes Based on Functionalized Oligothiophenes for Display and Lighting Applications

Organic Light Emitting Diodes Based on Functionalized Oligothiophenes for Display and Lighting Applications
A Book

by Marco Mazzeo

  • Publisher : Unknown Publisher
  • Release : 2010
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Organic Light Emitting Diodes Based on Functionalized Oligothiophenes for Display and Lighting Applications.

Introduction to Organic Light Emitting Diode (OLED) Physics

Introduction to Organic Light Emitting Diode (OLED) Physics
A Book

by Taiju Tsuboi

  • Publisher : Woodhead Publishing
  • Release : 2021-08-15
  • Pages : 360
  • ISBN : 9780128213872
  • Language : En, Es, Fr & De
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Introduction to Organic Light Emitting Diode Physics explains the underlying material and device physics that impact the performance of organic materials for OLED applications. The author details the mechanisms involved in OLED operation and the importance of OLED physics. The author provides the logic of key formulas and concepts necessary to interpret and analyze experimental results in OLED research. There is also discussion of emerging opportunities and remaining challenges to the advancement of OLED research. Introduction to Organic Light Emitting Diode Physics provides the fundamental concepts of OLED physics and light emitting materials including carrier mobility (which is vital for enhancing the efficiency of OLED technologies). Remaining challenges to improving the performance of OLEDs, including attention to device fabrication, are investigated. The author systematically compares the most relevant materials utilized for OLED applications and provides details on their differences. The book is suitable for new entrants and experienced researchers in the disciplines of materials science and engineering and physics working in academia and industry. Explains underlying material and device physics that impact the performance of organic materials for OLED applications Reviews and compares Organic LEDs to inorganic LEDs, polymer LEDs, and metallic OLED and non-metallic LEDs Discusses emerging topics and remaining challenges for OLED research, particularly ones that impact OLED efficiency and performance

Organic Light Emitting Diodes for White Light Emission

Organic Light Emitting Diodes for White Light Emission
A Book

by Ritu Srivastava

  • Publisher : Unknown Publisher
  • Release : 2010
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Organic Light Emitting Diodes for White Light Emission.

Organic Light Emitting Diode - Material, Process and Devices

Organic Light Emitting Diode - Material, Process and Devices
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2011
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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AMOLED - Active-Matrix Organic Light-Emitting Diode: High-impact Strategies - What You Need to Know

AMOLED - Active-Matrix Organic Light-Emitting Diode: High-impact Strategies - What You Need to Know
Definitions, Adoptions, Impact, Benefits, Maturity, Vendors

by Kevin Roebuck

  • Publisher : Tebbo
  • Release : 2011
  • Pages : 164
  • ISBN : 9781743048993
  • Language : En, Es, Fr & De
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Active-matrix OLED (active-matrix organic light-emitting diode or AMOLED) is a display technology for use in mobile devices and televisions. OLED describes a specific type of thin film display technology in which organic compounds form the electroluminescent material, and active matrix refers to the technology behind the addressing of pixels. As of 2011, AMOLED technology is used in mobile phones, media players and digital cameras and continues to make progress toward low-power, low-cost and large-size (for example 40 inches) applications. This book is your ultimate resource for AMOLED - Active-Matrix Organic Light-Emitting Diode. Here you will find the most up-to-date information, analysis, background and everything you need to know. In easy to read chapters, with extensive references and links to get you to know all there is to know about AMOLED - Active-Matrix Organic Light-Emitting Diode right away, covering: Active-matrix OLED, Avalanche photodiode, Emitter, Flexible organic light-emitting diode, User: Sushi1983/Sandbox, Laser diode, LED anchor light, Light-emitting diode, Linear diode array, Organic light-emitting diode, Phosphorescent organic light-emitting diode, Photodiode, PIN diode, Position sensitive device, Single-photon avalanche diode, Super AMOLED, Superluminescent diode, Thermal management of high-power LEDs, AmBX, Deep penetrating light therapy, Haitz's Law, L Prize, LED anti-collision light, LED art, LED circuit, LED display, LED Headliner, LED lamp, LED street light, Light extraction in LEDs, List of LED failure modes, LVX, Miniature light-emitting diode, Solar lamp, Solid-state lighting, Uniformity tape, Blue laser, Diode-pumped solid-state laser, Distributed feedback laser, Hybrid silicon laser, Laser diode rate equations, Polariton laser, Quantum cascade laser, Quantum dot laser, Quantum well laser, Semiconductor ring laser, Vertical-cavity surface-emitting laser, Vertical-external-cavity surface-emitting-laser This book explains in-depth the real drivers and workings of AMOLED - Active-Matrix Organic Light-Emitting Diode. It reduces the risk of your technology, time and resources investment decisions by enabling you to compare your understanding of AMOLED - Active-Matrix Organic Light-Emitting Diode with the objectivity of experienced professionals.

Organic Light-Emitting Materials and Devices

Organic Light-Emitting Materials and Devices
A Book

by Zhigang Li,Zhigang Rick Li,Hong Meng

  • Publisher : CRC Press
  • Release : 2006-09-12
  • Pages : 673
  • ISBN : 1420017063
  • Language : En, Es, Fr & De
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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

White Organic Light Emitting Diodes

White Organic Light Emitting Diodes
A Book

by Thomas Conrad Rosenow

  • Publisher : Unknown Publisher
  • Release : 2011
  • Pages : 132
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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