Journal ArticleDOI
Development of high performance OLEDs for general lighting
Hisahiro Sasabe,Junji Kido +1 more
Reads0
Chats0
TLDR
The first white organic light-emitting device (OLED) was developed in 1993, and the power efficiency and lifetime of this white OLED were reportedly only < 1 lm W−1 and < 1 day, respectively.Abstract:
Since the development of the first white organic light-emitting device (OLED) in 1993, twenty years have passed. The power efficiency and lifetime of this white OLED were reportedly only <1 lm W−1 and <1 day, respectively. However, recent rapid advances in material chemistry have enabled the use of white OLEDs for general lighting. In 2012, white OLED panel efficiency has reached 90 lm W−1 at 1000 cd m−2, and a tandem white OLED panel has realized a lifetime of over 100 000 hours. What is more important in OLEDs is to shed clear light on the new design products, such as transparent lighting panels and luminescent wallpapers. These fascinating features enable OLEDs as a whole new invention of artificial lighting. In this review, we would like to overview the recent developments of white OLED, especially three key elemental technologies related to material chemistry: (1) low operating voltage technology, (2) phosphorescent OLED technology and (3) multi-photon emission (MPE) device technology.read more
Citations
More filters
Journal ArticleDOI
Light-Induced Solubility Modulation of Polyfluorene To Enhance the Performance of OLEDs.
Korwin M. Schelkle,Markus Bender,Krischan Fabian Jeltsch,Tiago Buckup,Klaus Müllen,Manuel Hamburger,Uwe H. F. Bunz +6 more
TL;DR: Light-induced modulation of the solubility of π-conjugated polymers (polyfluorene) with side chains functionalized with hydroxycinnamic acid is reported, offering the possibility for further development in terms of manipulating thesolubility and emissive parameters of an important class of functional materials.
Journal ArticleDOI
An Effective Design Strategy for Robust Aggregation-Induced Delayed Fluorescence Luminogens to Improve Efficiency Stability of Nondoped and Doped OLEDs
Huijun Liu,Hao Liu,Jianzhong Fan,Jingjing Guo,Jiajie Zeng,Fuliang Qiu,Zujin Zhao,Ben Zhong Tang,Ben Zhong Tang +8 more
Journal ArticleDOI
Fluoranthene derivatives as blue fluorescent materials for non-doped organic light-emitting diodes
TL;DR: In this paper, the synthesis of symmetric and non-symmetric functionalized fluoranthene-based blue fluorescent molecular materials for non-doped electroluminescent devices was reported.
Journal ArticleDOI
Efficient red AIEgens based on tetraphenylethene: synthesis, structure, photoluminescence and electroluminescence
Yinghao Li,Weigao Wang,Zeyan Zhuang,Zhiming Wang,Gengwei Lin,Pingchuan Shen,Shuming Chen,Zujin Zhao,Ben Zhong Tang,Ben Zhong Tang +9 more
TL;DR: In this article, a series of robust red molecules consisting of tetraphenylethene, benzo-2,1,3-thiadiazole, phenanthro[9,10-d]imidazole and triphenylamine moieties are synthesized and fully characterized.
Journal ArticleDOI
Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes with Double Emitting Nanolayers
Baiquan Liu,Miao Xu,Lei Wang,Hong Tao,Yueju Su,Dongyu Gao,Linfeng Lan,Jianhua Zou,Junbiao Peng +8 more
TL;DR: A very-high color rendering index white organic light-emitting diode based on a simple structure was successfully fabricated and it was demonstrated that the 4,4′,4″-tri(9-carbazoyl) triphenylamine host influenced strongly the performance of this WOLED.
References
More filters
Journal ArticleDOI
Organic Electroluminescent Diodes
Ching Wan Tang,Steven A Vanslyke +1 more
TL;DR: In this article, a double-layer structure of organic thin films was prepared by vapor deposition, and efficient injection of holes and electrons was provided from an indium-tinoxide anode and an alloyed Mg:Ag cathode.
Journal ArticleDOI
Very high-efficiency green organic light-emitting devices based on electrophosphorescence
TL;DR: In this paper, the performance of an organic light-emitting device employing the green electrophosphorescent material, fac tris(2-phenylpyridine) iridium [Ir(ppy)3] doped into a 4,4′-N,N′-dicarbazole-biphenyl host was described.
Journal ArticleDOI
White organic light-emitting diodes with fluorescent tube efficiency
Sebastian Reineke,Frank Lindner,Gregor Schwartz,Nico Seidler,Karsten Walzer,Björn Lüssem,Karl Leo +6 more
TL;DR: An improved OLED structure which reaches fluorescent tube efficiency and focuses on reducing energetic and ohmic losses that occur during electron–photon conversion, which could make white-light OLEDs, with their soft area light and high colour-rendering qualities, the light sources of choice for the future.
Journal ArticleDOI
Charge Transport in Disordered Organic Photoconductors a Monte Carlo Simulation Study
Journal ArticleDOI
Management of singlet and triplet excitons for efficient white organic light-emitting devices
Yiru Sun,Noel C. Giebink,Hiroshi Kanno,Biwu Ma,Mark E. Thompson,Stephen R. Forrest,Stephen R. Forrest +6 more
TL;DR: This device challenges incandescent sources by exhibiting total external quantum and power efficiencies that peak at 18.7 ± 0.6 lm W-1, respectively, and two distinct modes of energy transfer within this device serve to channel nearly all of the triplet energy to the phosphorescent dopants, retaining the singlet energy exclusively on the blue fluorescent dopant.