Lanthanide Cerium(III) Tris(pyrazolyl)borate Complexes: Efficient Blue Emitters for Doublet Organic Light-Emitting Diodes

2021 ◽  
Author(s):  
Peiyu Fang ◽  
Liding Wang ◽  
Ge Zhan ◽  
Wenchao Yan ◽  
Peihao Huo ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Borate Complexes ◽  
Blue Emitters

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,...

Four color stacked white organic light-emitting diodes utilizing the concept of triplet harvesting

2011 ◽  
Vol 1286 ◽  
Author(s):  
Th. C. Rosenow ◽  
S. Olthof ◽  
S. Reineke ◽  
B. Lüssem ◽  
K. Leo
Keyword(s):  
Light Emitting Diodes ◽  
Blue Emission ◽  
Organic Light Emitting Diodes ◽  
Light Sources ◽  
Emission Layer ◽  
Light Emitting ◽  
Organic Light ◽  
Blue Emitters ◽  
Color Rendering ◽  
Triplet Harvesting

ABSTRACTOrganic light-emitting diodes (OLEDs) are developing into a competitive alternative to conventional light sources. Nevertheless, OLEDs need further improvement in terms of efficiency and color rendering for lighting applications. Fluorescent blue emitters allow deep blue emission and high stability, while phosphorescent blue emitter still suffer from insufficient stability. The concept of triplet harvesting is the key for achieving internal quantum efficiencies up to 100 % and simultaneously benefiting from the advantages of fluorescent blue emitters. Here, we present a stacked OLED consisting of two units comprising four different emitters in total. The first unit takes advantage of the concept of triplet harvesting and combines the light emission of a fluorescent blue and a phosphorescent red emitter. The second unit emits light from a single emission layer consisting of a matrix doped with phosphorescent green and yellow emitters. With this approach, we reach white color coordinates close to the standard illuminant A and a color rendering index of above 75. The presented devices are characterized by high luminous efficacies of above 30 lm/W on standard glass substrates without outcoupling enhancement.

scholarly journals Derivatives of Cyanonaphthyl-Substituted Phenanthroimidazole as Blue Emitters for Nondoped Organic Light-Emitting Diodes

ACS Omega ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 4553-4570 ◽  
Author(s):  
Jayaraman Jayabharathi ◽  
Pavadai Nethaji ◽  
Venugopal Thanikachalam ◽  
Ramaiyan Ramya
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Blue Emitters ◽  
Derivatives Of

Recent advances of the emitters for high performance deep-blue organic light-emitting diodes

2015 ◽  
Vol 3 (5) ◽  
pp. 913-944 ◽  
Author(s):  
Xiaolong Yang ◽  
Xianbin Xu ◽  
Guijiang Zhou
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light ◽  
Recent Advances ◽  
Critical Issues ◽  
Blue Emitters

Recent advances in deep-blue emitters furnishing high performance OLEDs and associated critical issues are discussed and reviewed.

Blue Emitters Based on Anthracene-Aryl-Anthracene Moieties End-Capped with 1-Naphthyl Groups for Organic Light-Emitting Diodes

2015 ◽  
Vol 15 (7) ◽  
pp. 5242-5245
Author(s):  
Soo Na Park ◽  
Hye Jeong Kim ◽  
Song Eun Lee ◽  
Seok Jae Lee ◽  
Young Kwan Kim ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Blue Emitters

Highly efficient white organic light-emitting diodes based on fluorescent blue emitters

2010 ◽  
Vol 108 (11) ◽  
pp. 113113 ◽  
Author(s):  
Thomas C. Rosenow ◽  
Mauro Furno ◽  
Sebastian Reineke ◽  
Selina Olthof ◽  
Björn Lüssem ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Blue Emitters

scholarly journals Sulfonyl-Substituted Heteroleptic Cyclometalated Iridium(III) Complexes as Blue Emitters for Solution-Processable Phosphorescent Organic Light-Emitting Diodes

2016 ◽  
Vol 55 (17) ◽  
pp. 8612-8627 ◽  
Author(s):  
Helen Benjamin ◽  
Yonghao Zheng ◽  
Andrei S. Batsanov ◽  
Mark A. Fox ◽  
Hameed A. Al-Attar ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Blue Emitters ◽  
Solution Processable
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