Highly efficient deep-blue organic light-emitting diodes based on pyreno[4,5-d]imidazole-anthracene structural isomers

2019 ◽  
Vol 7 (33) ◽  
pp. 10273-10280 ◽  
Author(s):  
Hui Liu ◽  
Liangliang Kang ◽  
Jinyu Li ◽  
Futong Liu ◽  
Xin He ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Device Performance ◽  
Structural Isomers ◽  
Light Emitting ◽  
Blue Region ◽  
Deep Blue ◽  
Organic Light ◽  
Blue Emitters

By integrating PyI with anthracene, two high-efficiency blue emitters C-BPyIA and N-BPyIA are obtained. Especially, N-BPyIA exhibits decent device performance with an EQEmax of 7.67% in the deep blue region.

Novel Fluoranthene Structure for Deep-Blue Organic Light-Emitting Diodes

2008 ◽  
Vol 8 (9) ◽  
pp. 4787-4792 ◽  
Author(s):  
Soo-Kang Kim ◽  
Jong-Wook Park
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Blue Region ◽  
Deep Blue ◽  
Organic Light ◽  
Color Coordinate ◽  
Excellent Color

As a new fluoranthene derivative, a synthesis of benzo[k]fluoranthene was suggested, so new blue emitting materials, 7,12-diphenylbenzo[k]fluoranthene [DPBF] and 7,8,10-triphenylfluoranthene [TPF] were synthesized. PLmax values of both compounds showed the wavelengths of 458 nm (TPF) and 434 nm, 453 nm (DPBF) that are in blue region. ELmax wavelength of the device using DPBF as an emitting layer was 436 and 454 nm in the deep-blue region, which are similar values with PL. The device that used DPBF as an emitting layer showed high efficiency of 2.11 cd/A and the excellent color coordinate value of (0.161, 0.131) in deep-blue region.

Starburst 4,4′,4′′-tris(carbazol-9-yl)-triphenylamine-based deep-blue fluorescent emitters with tunable oligophenyl length for solution-processed undoped organic light-emitting diodes

2015 ◽  
Vol 3 (4) ◽  
pp. 861-869 ◽  
Author(s):  
Mingquan Yu ◽  
Shumeng Wang ◽  
Shiyang Shao ◽  
Junqiao Ding ◽  
Lixiang Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Device Performance ◽  
Solution Processed ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light ◽  
Blue Emitters

Starburst TCTA-based deep-blue emitters are developed, whose solution-processed undoped device performance increases gradually with increasing oligophenyl length.

High-efficiency, long-lifetime deep-blue organic light-emitting diodes

2021 ◽  
Vol 15 (3) ◽  
pp. 208-215 ◽  
Author(s):  
Soon Ok Jeon ◽  
Kyung Hyung Lee ◽  
Jong Soo Kim ◽  
Soo-Ghang Ihn ◽  
Yeon Sook Chung ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light ◽  
Long Lifetime

Novel Carbazole-based Multifunctional Materials with Hybridized Local and Charge-Transfer Excited State Acting as Deep Blue Emitters and Phosphorescent Hosts for Highly Efficient Organic Light-Emitting Diodes

2021 ◽  
Author(s):  
Haitao Zhou ◽  
Mengna Yin ◽  
Zhenhong Zhao ◽  
Yanqin Miao ◽  
Xin Jin ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Multifunctional Materials ◽  
Light Emitting ◽  
Highly Efficient ◽  
Deep Blue ◽  
Organic Light ◽  
Blue Emitters

In this work, two carbazole- and benzo[d]oxazole-based novel multifunctional materials with hybridized local and charge-transfer (HLCT) characteristic, namely OCI and OCT, which could act as deep-blue fluorophors and phosphorescent hosts,...

scholarly journals High‐Efficiency Deep‐Blue‐Emitting Organic Light‐Emitting Diodes Based on Iridium(III) Carbene Complexes

2018 ◽  
Vol 30 (50) ◽  
pp. 1804231 ◽  
Author(s):  
Amlan K. Pal ◽  
Simonas Krotkus ◽  
Mattia Fontani ◽  
Campbell F. R. Mackenzie ◽  
David B. Cordes ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Carbene Complexes ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light
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