scholarly journals 4,7-Bis(1,2,3,4,4a,9a-Hexahydro-9H-carbazol-9-yl)-[1,2,5]oxadiazolo[3,4-d]pyridazine

Molbank ◽  
10.3390/m1295 ◽  
2021 ◽  
Vol 2021 (4) ◽  
pp. M1295
Author(s):  
Timofey N. Chmovzh ◽  
Karim S. Gaisin ◽  
Oleg A. Rakitin
Keyword(s):  
Mass Spectrometry ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Light Emitting Diodes ◽  
Uv Spectroscopy ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Donor Acceptor ◽  
Ir And Uv Spectroscopy

New donor-acceptor-donor (D-A-D)-type structures are widely used to design effective organic light-emitting diodes (OLEDs). In this communication, 4,7-bis(1,2,3,4,4a,9a-hexahydro-9H-carbazol-9-yl)-[1,2,5]oxadiazolo[3,4-d]pyridazine was obtained in a 65% yield by the treatment of 4,7-dichloro[1,2,5]oxadiazolo[3,4-d]pyridazine 1-oxide with 2,3,4,4a,9,9a-hexahydro-1H-carbazole. The structure of the newly synthesized compounds was established by means of an elemental analysis, 1H, 13C NMR, IR and UV spectroscopy, and HRMS and LR mass-spectrometry.

Organic EL Devices with Bis-Diphenylquinoxaline as ET Material

2011 ◽  
Vol 250-253 ◽  
pp. 4034-4037 ◽  
Author(s):  
Ting Xi Li ◽  
Su Su Gao ◽  
Peng Sui ◽  
Na Kong ◽  
Shasha Wu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Elemental Analysis ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Transmission Performance ◽  
Electroluminescent Devices ◽  
Light Emitting ◽  
Organic Light ◽  
Electron Transporting Layer ◽  
Organic Electroluminescent

A new compound, 2,3,2',3'-Tetraphenyl-[6,6']-biquinoxalinyl was synthesized. Its structure was determined by mass spectrometry and elemental analysis. Organic electroluminescent devices using this compound as electron-transporting layer were fabricated and electroluminescent properties were studied. It was demonstrated that this compound has excellent electronic transmission performance in organic light-emitting diodes (OLED).

Efficient near-infrared organic light-emitting diodes based on a bipolar host

2018 ◽  
Vol 6 (6) ◽  
pp. 1407-1412 ◽  
Author(s):  
Yun Hu ◽  
Yi Yuan ◽  
Ying-Li Shi ◽  
Jiu-Dong Lin ◽  
Zuo-Quan Jiang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Light Emitting Diodes ◽  
Emission Peak ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Type Host ◽  
Organic Light ◽  
Donor Acceptor

A maximum EQE of 2.7% with an emission peak of 735 nm was achieved by employing a donor–acceptor type host 5-(4-(diphenylamino)phenyl)acenaphthylene-1,2-dione (ADO-TPA).

Diluted exciplex concentration in organic light emitting diodes for blue-shifted spectra and improved efficiency

2022 ◽  
Author(s):  
Jiakui Yan ◽  
Bizheng Dong ◽  
Yabo Xu ◽  
Bo Zhao ◽  
Fangming Jin ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Blue Shift ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Donor Acceptor

In this work, the effects of different ratios of donor/acceptor and spacer host materials on exciplex organic light emitting diodes (OLED) based DMAC-DPS:PO-T2T were explored, an obvious spectral blue-shift and...

scholarly journals Thermally Activated Delayed Fluorescent Donor–Acceptor–Donor–Acceptor π-Conjugated Macrocycle for Organic Light-Emitting Diodes

2020 ◽  
Vol 142 (3) ◽  
pp. 1482-1491 ◽  
Author(s):  
Saika Izumi ◽  
Heather F. Higginbotham ◽  
Aleksandra Nyga ◽  
Patrycja Stachelek ◽  
Norimitsu Tohnai ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light ◽  
Donor Acceptor

Novel donor–acceptor materials for organic light-emitting diodes based on α-cinnamoyl cyclic ketene dithioacetals

2007 ◽  
Vol 126 (2) ◽  
pp. 464-468 ◽  
Author(s):  
Ping Peng ◽  
Shaoguang Sun ◽  
Yixin Zhao ◽  
Weicai Wu ◽  
Haijian Xia ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Ketene Dithioacetals ◽  
Organic Light ◽  
Donor Acceptor

scholarly journals Exciton efficiency beyond the spin statistical limit in organic light emitting diodes based on anthracene derivatives

2020 ◽  
Vol 8 (11) ◽  
pp. 3773-3783 ◽  
Author(s):  
Nidhi Sharma ◽  
Michael Yin Wong ◽  
David Hall ◽  
Eduard Spuling ◽  
Francisco Tenopala-Carmona ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Statistical Limit ◽  
Donor Acceptor ◽  
Anthracene Derivatives

We report two donor–acceptor (D–A) materials based on a cyanoanthracene acceptor paired with diphenylamine (DPAAnCN) and carbazole (CzAnCN) donor moieties.

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