Journal ArticleDOI
Development of high performance OLEDs for general lighting
Hisahiro Sasabe,Junji Kido +1 more
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
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Journal ArticleDOI
Dinuclear metal complexes: multifunctional properties and applications
TL;DR: This review aims to provide an up-to-date summary and outlook of functional dinuclear metal complexes and to stimulate more researchers to contribute to this exciting interdisciplinary field.
Journal ArticleDOI
Tunable luminescence and white light emission of mixed lanthanide–organic frameworks based on polycarboxylate ligands
TL;DR: In this article, the authors provide an overview of the current status of mixed Ln-MOFs, especially those constructed using aromatic polycarboxylate ligands, and highlight their color tunable and white light emission properties.
Journal ArticleDOI
Triplet-Energy Control of Polycyclic Aromatic Hydrocarbons by BN Replacement: Development of Ambipolar Host Materials for Phosphorescent Organic Light-Emitting Diodes
Sigma Hashimoto,Toshiaki Ikuta,Shiren Kazushi,Soichiro Nakatsuka,Jingping Ni,Masaharu Nakamura,Takuji Hatakeyama,Takuji Hatakeyama,Takuji Hatakeyama +8 more
TL;DR: In this article, the authors achieved the triplet-energy control of polycyclic aromatic hydrocarbons (PAHs) by replacing the Carbon−Carbon (CC) unit with a Boron−Nitrogen (BN) unit.
Journal ArticleDOI
Light-Emitting Electrochemical Cells and Solution-Processed Organic Light-Emitting Diodes Using Small Molecule Organic Thermally Activated Delayed Fluorescence Emitters
Michael Y. Wong,Gordon J. Hedley,Guohua Xie,Lisa S. Kölln,Ifor D. W. Samuel,Antonio Pertegás,Henk J. Bolink,Eli Zysman-Colman +7 more
TL;DR: In this paper, two novel charged organic thermally activated delayed fluorescence (TADF) emitters, 1 and 2, have been synthesized and exhibited an external quantum efficiency (EQE) of 0.39% using 2.
Journal ArticleDOI
Efficient photovoltaic and electroluminescent perovskite devices
Lidón Gil-Escrig,Giulia Longo,Antonio Pertegás,Cristina Roldán-Carmona,Alejandra Soriano,Michele Sessolo,Henk J. Bolink +6 more
TL;DR: Planar diode structures employing hybrid organic-inorganic methylammonium lead iodide perovskites lead to multifunctional devices exhibiting both a high photovoltaic efficiency and good electroluminescence.
References
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Organic Electroluminescent Diodes
Ching Wan Tang,Steven A Vanslyke +1 more
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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.