Results 271 to 280 of about 212,336 (328)

A Review on Encapsulation Technology from Organic Light Emitting Diodes to Organic and Perovskite Solar Cells

Advanced Functional Materials, 2021
Organic light emitting diodes (OLEDs) employing organic thin‐film based emitters have attracted tremendous attention due to their widespread applications in lighting and as displays in mobile devices and televisions.
Q. Lu, Zhichun Yang, Xingrui Meng, Youfeng Yue, Muhammad Ashfaq Ahmad, Wenjun Zhang, Shasha Zhang, Yiqiang Zhang, Zonghao Liu, Wei Chen   +9 more
semanticscholar   +1 more source

Approaching Nearly 40% External Quantum Efficiency in Organic Light Emitting Diodes Utilizing a Green Thermally Activated Delayed Fluorescence Emitter with an Extended Linear Donor–Acceptor–Donor Structure

Advances in Materials, 2021
Thermally activated delayed fluorescence (TADF) emitters featuring preferential horizontal emitting dipole orientation (EDO) are in urgent demand for enhanced optical outcoupling efficiency in organic light‐emitting diodes (OLEDs).
Yang Chen, Dongdong Zhang, Yuewei Zhang, Xuan Zeng, Tianyu Huang, Ziyang Liu, Guomeng Li, Lian Duan   +7 more
semanticscholar   +1 more source

Organic Light-Emitting Diodes

2017
The 2014 Nobel Prize in Physics was awarded “for the invention of efficient blue light-emitting diodes (LEDs) which has enabled bright and energy-saving white light sources” [1, 2, 3], setting a clear target to mankind: energy-efficient and environmental-friendly light sources [4]. The first organic LED (OLED) was reported in 1987 by a team at Kodak [5]
Kordt, Pascal, Bobbert, Peter, Coehoorn, Reinder, May, Falk, Lennartz, Christian, Andrienko, Denis   +5 more
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Emerging Biomedical Applications of Organic Light‐Emitting Diodes

Advanced Optical Materials, 2021
As solid‐state light sources based on amorphous organic semiconductors, organic light‐emitting diodes (OLEDs) are widely used in modern smartphone displays and TVs.
Caroline Murawski, M. Gather
semanticscholar   +1 more source

Efficient and Stable Deep‐Blue Fluorescent Organic Light‐Emitting Diodes Employing a Sensitizer with Fast Triplet Upconversion

Advances in Materials, 2020
Multiple donor–acceptor‐type carbazole–benzonitrile derivatives that exhibit thermally activated delayed fluorescence (TADF) are the state of the art in efficiency and stability in sky‐blue organic light‐emitting diodes.
Dongdong Zhang, Xiaozeng Song, A. Gillett, Bluebell H. Drummond, Saul T. E. Jones, Guomeng Li, Hanqing He, Minghan Cai, D. Credgington, Lian Duan   +9 more
semanticscholar   +1 more source

Organic Light‐Emitting Diodes: Pushing Toward the Limits and Beyond

Advances in Materials, 2020
Organic light‐emitting diodes (OLEDs) are established as a mainstream light source for display applications and can now be found in a plethora of consumer electronic devices used daily. This success can be attributed to the rich luminescent properties of
Jinouk Song, Hyeonwoo Lee, E. Jeong, K. Choi, S. Yoo   +4 more
semanticscholar   +1 more source

Recent advances in circularly polarized electroluminescence based on organic light-emitting diodes.

Chemical Society Reviews, 2020
Since the first attempt that was made to obtain direct circularly polarized (CP) light from OLEDs by Meijer et al. in 1997, considerable efforts have been devoted to the development of circularly polarized organic light-emitting diodes (CP-OLEDs ...
Da‐Wei Zhang, Meng Li, Chuan-feng Chen
semanticscholar   +1 more source

Recent progress in hot exciton materials for organic light-emitting diodes.

Chemical Society Reviews, 2020
According to Kasha's rule, high-lying excited states usually have little effect on fluorescence. However, in some molecular systems, the high-lying excited states partly or even mainly contribute to the photophysical properties, especially in the process
Yuwei Xu, Pei Xu, Dehua Hu, Yuguang Ma
semanticscholar   +1 more source

Recent Progress of the Lifetime of Organic Light‐Emitting Diodes Based on Thermally Activated Delayed Fluorescent Material

Advances in Materials, 2019
Recently, the external quantum efficiency and lifetime of organic light‐emitting diodes (OLEDs) have been dramatically upgraded due to development of organic materials and device structure. In particular, an intramolecular or intermolecular complex based
S. Jeon, Ha Lim Lee, K. Yook, Jun Yeob Lee   +3 more
semanticscholar   +1 more source

Carbazole-Based DABNA Analogs as Highly Efficient Thermally Activated Delayed Fluorescence Materials for Narrowband Organic Light-Emitting Diodes.

Angewandte Chemie, 2020
Carbazole-based DABNA analogs ( CzDABNA s) were synthesized from triarylamine by regioselective one-shot single and double borylation. The reaction proceeded selectively at the ortho position of the carbazolyl group, where the highest occupied molecular ...
S. Oda, W. Kumano, Toshiki Hama, Ryosuke Kawasumi, Kazuki Yoshiura, T. Hatakeyama   +5 more
semanticscholar   +1 more source