Results 121 to 130 of about 23,878 (272)

Deep red to near‐infrared thermally activated delayed fluorescence conjugated polymers toward highly efficient solution‐processible deep red and near‐infrared organic light‐emitting diodes

FlexMat, EarlyView.
A series of deep red (DR) and near‐infrared (NIR) thermally activated delayed fluorescence conjugated polymers are prepared, their solution‐processible organic light‐emitting diodes exhibit DR emission with maximum external quantum efficiency (EQEmax) of 6.4%, high luminance of 4254 cd m−2 and emission peak at 678 nm, and a NIR device with EQEmax of 2 ...
Tao Wang, Hongyang Zhang, Liping Jin, Peng Tao, Yanxiang Cheng, Wai‐Yeung Wong   +5 more
wiley   +1 more source

Editorial: iSensor and iMedicine for human health

Frontiers in Chemistry, 2022
Chengchao Chu, Yan Zhang, Yan Zhang
doaj   +1 more source

Chiral Emission from Optical Metasurfaces and Metacavities

Advanced Photonics Research
Chiral emission exhibiting a large degree of circular polarization (DCP) is important in diverse applications ranging from displays and optical storage to optical communication, bioimaging, and medical diagnostics.
Jungho Han, Heejoo Jang, Yeonsoo Lim, Seongheon Kim, Jeheon Lee, Young Chul Jun   +5 more
doaj   +1 more source

Flexible plasma‐sintered transparent conducting electrodes fabricated from particle free gold inks

FlexMat, EarlyView.
Thin gold electrodes fabricated via particle free metal organic decomposition inks provide a promising alternative to indium tin oxide for flexible devices. Low temperature plasma sintering enables compatibility with polymer substrates while maintaining transparency and sufficient electrical conductivity for optoelectronic applications.
Michael Hengge, Felix Hermerschmidt, Nicolas Fratzscher, Konstantin Livanov, Natalia Zamoshchik, Emil J. W. List‐Kratochvil   +5 more
wiley   +1 more source

UV and white electroluminescence in AVB polymer

, 2003
UV-Vis absorption, photoluminescence (PL), and electroluminescence (EL) from heterostructure thin films made of 1,4-bis-(9-anthrylvinyl)-benzene (AVB) are investigated.
Marai, F., Romdhane, S., Roussel, Joseph, Bouchriha, H., Fave, Jean-Louis, Majdoub, M., Hassine, L.   +6 more
core   +1 more source

Recent progress and challenges in top‐emitting quantum dot light‐emitting diodes

FlexMat, EarlyView.
This review summarizes recent advances in top‐emitting quantum‐dot light‐emitting diodes (TE‐QLEDs), including device architectures, microcavity engineering, angular‐emission management, and operational stability, highlighting optical–electrical–thermal co‐optimization as the key pathway toward reliable, high‐performance TE‐QLEDs. Abstract Top‐emitting
Chengyi Chen, Yuqi Liang, Mian Wei, Qiulei Xu, Huimin Zhang, Zhenghui Wu, Huaibin Shen   +6 more
wiley   +1 more source

Counter‐ion modulation: A facile approach toward quenching‐resistant multi‐resonance emitters for efficient narrowband electroluminescence

FlexMat, EarlyView.
Quenching‐resistant carbocation‐based multi‐resonance emitters are developed via a facile counter‐ion modulation strategy, giving much narrowed emission bands under high doping concentrations, and greatly improved device efficiency for solution‐processed narrowband OLEDs by simply increasing the size of counter ions.
Tao Li, Guimin Zhao, Yuanyuan Li, Zhihua Ma, Zhicai Chen, Fangfang Huang, Ronghao Yang, Wei Jiang, Xin Ai, Shiyang Shao   +9 more
wiley   +1 more source

Recent advances and prospects for high‐efficiency blue hot exciton organic light‐emitting diodes

FlexMat, EarlyView.
Blue organic light‐emitting diodes (OLEDs) face great challenges in achieving the balance between color purity, device efficiency, and stability. Hot exciton materials offer a solution by rapidly converting non‐emissive triplet excitons into singlet ones through a high‐lying reverse intersystem crossing process.
Xiaoen Shi, Shuyuan Ge, Futong Liu, Ping Lu   +3 more
wiley   +1 more source

Polarization Reversal Electroluminescence at Low Frequencies in Barium Titanate Crystals

, 1966
Audiofrequency-induced electroluminescence in BaTiO3 single crystals is studied as a function of the strength and the frequency of the applied field, the temperature of the crystal, the nature of the electrode material, and the biasing field. It is shown
Bhide, V. G., V. G. Bhide, S. N. Shringi, Shringi, S. N.   +3 more
core   +1 more source

Pyridine‐dicarbonitriles acceptor engineering in multi‐resonance thermally activated delayed fluorescence with hybridized short‐ and long‐range charge transfer for high‐performance electroluminescence

FlexMat, EarlyView.
Pyridine‐dicarbonitrile units integrated into a multiple‐resonance core engineer the excited state through cooperative short‐range charge transfer (SRCT) and long‐range charge transfer (LRCT), thereby enhancing the spin‐flipping process. Abstract Multi‐resonance (MR) thermally activated delayed fluorescence (TADF) materials exhibit narrowband emission ...
Jing Sun, Zezhu Xiao, Wei Li, Songqian Ni, Haorun Dai, Xiangyun Wang, Jiasen Zhang, Weiguo Zhu, Ziyi Ge, Xiugang Wu   +9 more
wiley   +1 more source