scholarly journals Efficient full-colour organic light-emitting diodes based on donor–acceptor electroluminescent materials with a reduced singlet–triplet splitting energy gap

RSC Advances ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 2948-2966 ◽  
Author(s):  
Jayaraman Jayabharathi ◽  
Ramaiyan Ramya ◽  
Venugopal Thanikachalam ◽  
Palanivel Jeeva ◽  
Elayaperumal Sarojpurani
Keyword(s):  
Light Emitting Diodes ◽  
Energy Gap ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Triplet Splitting ◽  
Donor Acceptor ◽  
Splitting Energy ◽  
Cie Coordinates

The Cz-DEPVI device showed high efficiencies of L: 13955 cd m−2, ηex: 4.90%, ηc: 6.0 cd A−1, ηp: 5.4 lm W−1 and CIE coordinates of (0.15, 0.06) at 2.8 V.

scholarly journals Universal Electroluminescence at Voltages below the Energy Gap in Organic Light‐Emitting Diodes

2021 ◽  
pp. 2101149
Author(s):  
Yungui Li ◽  
Oskar Sachnik ◽  
Bas Zee ◽  
Kalyani Thakur ◽  
Charusheela Ramanan ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Energy Gap ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

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

Power-efficient solution-processed red organic light-emitting diodes based on an exciplex host and a novel phosphorescent iridium complex

2016 ◽  
Vol 4 (24) ◽  
pp. 5787-5794 ◽  
Author(s):  
Xuejing Liu ◽  
Bing Yao ◽  
Zilong Zhang ◽  
Xiaofei Zhao ◽  
Baohua Zhang ◽  
...  
Keyword(s):  
Power Efficiency ◽  
Efficient Solution ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Iridium Complex ◽  
Solution Processed ◽  
Power Efficient ◽  
Light Emitting ◽  
Organic Light ◽  
Cie Coordinates

A novel red heteroleptic iridium complex, Ir(DPA-Flpy-CF3)2acac, was synthesized and whose corresponding solution-processed PhOLED shows a record power efficiency of 44.5 lm W−1 with CIE coordinates of (0.64, 0.36).

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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