Results 141 to 150 of about 16,189 (305)

OLED-pumped Organic Laser

We report a numerical investigation of the recently proposed (Nature 621, 2023, 746) high-speed μ-OLED optically pumped organic laser and confirm that in this configuration the threshold for quasi-CW lasing is much easier reached than in case of a direct-
Fischer, Alexis, Lenstra, Daan; id_orcid, Chakaroun, Mahmoud, Loganathan, Nixson, Ouirimi, Amani   +4 more
core   +1 more source

Decoding Heptazine Architectures: From Molecular Association to Structural Insight

Chemistry – A European Journal, EarlyView.
A comprehensive study (NMR and theoretical) of three novel heptazine derivatives that self‐assemble into dimers has been conducted, highlighting their versatility as a platform for multifunctional supramolecular and optoelectronic materials. ABSTRACT Heptazine (Hpz) derivatives display remarkable supramolecular organization governed by noncovalent ...
Silvia del Moral, Daniel Barrena‐Espés, Julen Munarriz, Matthias Lehmann, Pilar Romero, José Luis Serrano   +5 more
wiley   +1 more source

Novel Amorphous Red Electroluminescence Material Based on Pyranylidene Indene-1,3-dione Derivative

The organic light emitting diode (OLED) is a promising device for future technologies, like flat panel displays and novel light sources. So far the OLED struc-tures have mostly been made by thermal evaporation in vacuum. An alternative approach is to use
Šarakovskis, Anatolijs, Latvels, J., Zariņš, Elmārs, Kokars, Valdis, Porozovs, M., Vembris, A., Muzikante, I.   +6 more
core  

Gas–Solid Interface‐Assisted Growth of Organic Semiconductor Single Crystals: Dimensions, Structures, Mechanisms, and Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Gas–solid interface‐assisted growth strategies have unlocked precise control over crystal structure, morphology, dimension, and molecular packing. The obtained organic semiconductor single crystals represent the ideal candidates for high‐performance organic optoelectronic devices.
Tingyi Yan, Qing Tian, Jinwen Wang, Ke Jiang, Yage Han, Yuanzhuang Ren, Lingyun Li, Xiujuan Zhang, Jiansheng Jie   +8 more
wiley   +1 more source

Accessing Heterocycle‐Containing Borazine Frameworks via C−H Functionalization Reactions of Heterocycles

European Journal of Organic Chemistry, EarlyView.
A Pd/Cu cooperative catalytic system enables the direct C–H functionalization of a diverse range of five‐membered and benzo‐fused heterocycles with iodinated hexaarylborazines, providing efficient access to previously inaccessible heterocycle‐functionalized borazines.
Fan Huang, Giulia Brufani, Ejdi Cela, Alireza Nazari Khodadadi, Dario Marchionni, Luigi Vaccaro   +5 more
wiley   +1 more source

Organic Photodetectors and Sensors for Low‐Light and Infrared Applications

Electron, EarlyView.
This mini review highlights recent advances in organic photodetectors and sensors for low‐light and infrared applications, emphasizing molecular design, device architectures, and interface engineering that improve charge transport, detectivity, speed, and spectral selectivity.
Swarup Biswas, Hyeok Kim
wiley   +1 more source

ECO-FRIENDLY OZONE STERILIZATION ON ROTATABLE OLED

, 2020
This invention is to apply a corona‐discharged ozone sterilization process on flexible OLED touch display by rotating dual flexible OLED touch screens to prevent and avoid the infection in contact with the virus or bacteria on OLED screen to cause the ...
INC, HP
core  

Thermally activated delayed fluorescence exciplex sensitizers with fast reverse intersystem crossing for improving efficiency stability of organic light‐emitting diodes based on multi‐resonance emitters

FlexMat, EarlyView.
Two exciplex emitters are constructed based on a host‐guest doping strategy, and their exciton dynamics processes are investigated in depth. High‐performance OLEDs are fabricated by employing these exciplexes as emitters or sensitizers, providing excellent electroluminescence efficiencies and low efficiency roll‐offs.
Jingwen Xu, Min Wang, Jinshi Li, Ben Zhong Tang, Zujin Zhao   +4 more
wiley   +1 more source

Flexible white thermally activated delayed fluorescence polymer with alkyl spacer and side‐chain encapsulation for efficient solution‐processed white organic light‐emitting diodes

FlexMat, EarlyView.
A “gemstone‐necklace” FASCE strategy synthesizes single‐component white polymers (PTF‐Qx) by alternating rigid TADF units with flexible alkyl chains. The non‐doped rigid device achieves a high EQE of 15.66% with stable white emission (CIE: 0.36, 0.46).
Wenhao Zhang, Hongyu Zhuang, Xinxin Ban, Shilong Feng, Tao Xu, Youqiang Qian, Shun Hu, Aiyun Zhu   +7 more
wiley   +1 more source

Spirobifluorene fusion in multiple resonance frameworks enables efficient pure‐red OLEDs with narrowband emission and suppressed efficiency roll‐off

FlexMat, EarlyView.
An orthogonal spirobifluorene‐fusion strategy is introduced for B/N/O‐alternated MR frameworks, enabling improved kRISC (5.46 × 103 s−1), high ΦPL (97%), and narrow‐band pure‐red emission. Vacuum‐evaporated OLEDs incorporating this emitter achieve an EQEmax >40% (FWHM = 36 nm) and exhibit exceptionally low efficiency roll‐off at high luminance ...
Yan‐Yun Jing, Han Wu, Xiaoling Xu, Sijie Xian, Jingsheng Miao, Xiaojun Yin, Chuluo Yang, Xiaosong Cao   +7 more
wiley   +1 more source