Journal ArticleDOI
Recent advances of the emitters for high performance deep-blue organic light-emitting diodes
TLDR
In this article, the crucial tactics employed to obtain high performance deep-blue emitters are presented, including polymers, dendrimers, small organic molecules, delayed fluorescent systems, and phosphorescent emitters.Abstract:
Blue organic light-emitting diodes (OLEDs) can play a critical role in the field of organic electroluminescence (EL). As the most important applications of OLEDs, both new generation full-color flat-panel displays and future energy-saving solid-state lighting sources require blue color EL to fulfill their functions properly. However, considerable challenges still exist in searching for highly efficient, color stable, and long-lifespan materials and devices that emit blue color, especially in the development of deep-blue emitters, which are indispensable for high-quality displays and lighting sources. Encouragingly, great progress has been made in the area of deep-blue OLEDs in recent years with continuous efforts made by scientists, who are responsible for the significant achievements in the field of OLEDs. Hence, in this review, the crucial tactics employed to obtain high performance deep-blue emitters are presented, including polymers, dendrimers, small organic molecules, delayed fluorescent systems, and phosphorescent emitters. Moreover, the future perspectives and ongoing challenges of this research frontier are also highlighted.read more
Citations
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Journal ArticleDOI
Electron-phonon interaction in efficient perovskite blue emitters
Xiwen Gong,Oleksandr Voznyy,Ankit Jain,Wenjia Liu,Randy P. Sabatini,Zachary Piontkowski,Grant Walters,Golam Bappi,Sergiy Nokhrin,Oleksandr S. Bushuyev,Mingjian Yuan,Riccardo Comin,David W. McCamant,Shana O. Kelley,Edward H. Sargent +14 more
TL;DR: It is shown that a PLQY up to 79% and linewidth of 20 nm can be reached by controlling crystal rigidity and electron–phonon interactions, and that molecular motion is slowest, and rigidity greatest, in the brightest emitter.
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A Brief History of OLEDs-Emitter Development and Industry Milestones.
Gloria Hong,Xuemin Gan,Céline Leonhardt,Zheng Zhang,Jasmin Seibert,Jasmin M. Busch,Stefan Bräse +6 more
TL;DR: The history of green, orange-red, and blue OLED emitter development on the side of academia and milestones achieved by key players in the industry are included in this article, where an overview of the development history of organic light-emitting diodes is presented.
Journal ArticleDOI
Bright high-colour-purity deep-blue carbon dot light-emitting diodes via efficient edge amination
Fanglong Yuan,Ya-Kun Wang,Geetu Sharma,Yitong Dong,Xiaopeng Zheng,Peicheng Li,Andrew Johnston,Golam Bappi,James Z. Fan,Hao Kung,Bin Chen,Makhsud I. Saidaminov,Makhsud I. Saidaminov,Kamalpreet Singh,Oleksandr Voznyy,Osman M. Bakr,Zheng-Hong Lu,Edward H. Sargent +17 more
TL;DR: In this article, deep-blue high-colour-purity light-emitting materials are developed by using amine-based edge passivation, and they exhibit a maximum luminance of 5,240 cd m−2 and an external quantum efficiency of 4%.
Journal ArticleDOI
Phosphorescent Pt(II) and Pd(II) Complexes for Efficient, High-Color-Quality, and Stable OLEDs.
Tyler Fleetham,Guijie Li,Jian Li +2 more
TL;DR: The development of N-heterocyclic carbene-based emitters and tetradentate cyclometalated Pt and Pd complexes have significantly improved the emission efficiency and reduced their radiative lifetimes making them competitive with the best reported Ir complexes.
Journal ArticleDOI
Aggregation-induced emission: a coming-of-age ceremony at the age of eighteen
TL;DR: Aggregation-induced emission (AIE) has drawn great attention worldwide for its unique optical phenomenon and huge potential applications as discussed by the authors, which has been deeply investigated and widely utilized in many important areas, such as organic light-emitting diode (OLED), sensor, and bio-imaging.
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
Light-emitting diodes based on conjugated polymers
J. H. Burroughes,Donal D. C. Bradley,Adam R. Brown,R.N. Marks,K. D. Mackay,Richard H. Friend,P. L. Burns,Andrew B. Holmes +7 more
TL;DR: In this article, the authors demonstrate that poly(p-phenylene vinylene), prepared by way of a solution-processable precursor, can be used as the active element in a large-area light-emitting diode.
Journal ArticleDOI
Highly efficient phosphorescent emission from organic electroluminescent devices
Marc A. Baldo,D. F. O’Brien,Yujian You,Andrei Shoustikov,Scott Sibley,Scott Sibley,Mark E. Thompson,Stephen R. Forrest +7 more
TL;DR: In this article, a host material doped with the phosphorescent dye PtOEP (PtOEP II) was used to achieve high energy transfer from both singlet and triplet states.
Journal ArticleDOI
Highly efficient organic light-emitting diodes from delayed fluorescence
Hiroki Uoyama,Kenichi Goushi,Kenichi Goushi,Katsuyuki Shizu,Hiroko Nomura,Chihaya Adachi,Chihaya Adachi +6 more
TL;DR: A class of metal-free organic electroluminescent molecules in which the energy gap between the singlet and triplet excited states is minimized by design, thereby promoting highly efficient spin up-conversion from non-radiative triplet states to radiative singlet states while maintaining high radiative decay rates.
Journal ArticleDOI
Nearly 100% internal phosphorescence efficiency in an organic light emitting device
TL;DR: In this paper, the authors demonstrate very high efficiency electrophosphorescence in organic light-emitting devices employing a phosphorescent molecule doped into a wide energy gap host, achieving a maximum external quantum efficiency of 19.0±1.0 and luminous power efficiency of 60±5 lm/W.
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