scholarly journals Controlling excimer formation in indolo[3,2,1-jk]carbazole/9H-carbazole based host materials for RGB PhOLEDs

2018 ◽  
Vol 6 (37) ◽  
pp. 9914-9924 ◽  
Author(s):  
Chenyang Zhao ◽  
Thomas Schwartz ◽  
Berthold Stöger ◽  
Fraser J. White ◽  
Jiangshan Chen ◽  
...  
Keyword(s):  
Molecular Design ◽  
Host Materials ◽  
Excimer Formation

Excimer formation in indolo[3,2,1-jk]carbazole based host materials is controlled by molecular design and the developed materials are employed in efficient red, green and blue PhOLED devices.

scholarly journals Excimer Formation by Steric Twisting in Carbazole and Triphenylamine-Based Host Materials

2015 ◽  
Vol 119 (5) ◽  
pp. 2380-2387 ◽  
Author(s):  
Sergey A. Bagnich ◽  
Stavros Athanasopoulos ◽  
Alexander Rudnick ◽  
Pamela Schroegel ◽  
Irene Bauer ◽  
...  
Keyword(s):  
Host Materials ◽  
Excimer Formation

Phenanthroimidazole-Based Organic Fluorophores for Organic Light-Emitting Diodes

2018 ◽  
pp. 305-388
Author(s):  
Sivakumar Vaidyanathan ◽  
Jairam Tagare
Keyword(s):  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Energy Utilization ◽  
Light Emitting ◽  
Design And Synthesis ◽  
Organic Light ◽  
Color Displays ◽  
Host Materials ◽  
Yellow Orange

Considering the imminent global energy crisis and inefficient energy utilization, energy-efficient organic light-emitting diodes (OLEDs) are considered one of the most competitive candidates for displays and particularly for future energy-saving lighting sources. Full color displays require all primary colors: red, green, and blue (RGB). In recent decades, numerous phenanthroimidazole (PI) RGB-emitting materials have been developed for efficient OLEDs. In organic electronics, considerable interest is shown on PI, due to ease in fluorophore modification. This chapter focuses on the design and synthesis of PI-based materials and their applications in OLEDs. At first, some nondoped blue, green, and yellow fluorescent materials are comprehensively studied. Then attention has been paid for typical blue, green, yellow, orange, and red PhOLEDs of PI-based fluorophores as a host materials are briefly presented. The molecular design concept, general synthetic routes for PI materials, and the applications of fluorophores in fluorescent OLEDs and host materials in PhOLEDs are reviewed.

Molecular design of large-bandgap host materials and their application to blue phosphorescent organic light-emitting diodes

2015 ◽  
Vol 26 ◽  
pp. 218-224 ◽  
Author(s):  
Ju Sik Kang ◽  
Tae Ryang Hong ◽  
Hyung Jong Kim ◽  
Young Hoon Son ◽  
Jong-Kwan Bin ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Blue Phosphorescent

scholarly journals Properties modulation of organic semi-conductors based on a donor-spiro-acceptor (D-spiro-A) molecular design: new host materials for efficient sky-blue PhOLEDs

2015 ◽  
Vol 3 (37) ◽  
pp. 9701-9714 ◽  
Author(s):  
Maxime Romain ◽  
Denis Tondelier ◽  
Olivier Jeannin ◽  
Bernard Geffroy ◽  
Joëlle Rault-Berthelot ◽  
...  
Keyword(s):  
Molecular Design ◽  
New Host ◽  
Host Materials

Four high triplet organic semi-conductors based on the donor-spiro-acceptor design (D-spiro-A) have been synthesized.

Molecular design of host materials for high power efficiency in blue phosphorescent organic light-emitting diodes doped with an imidazole ligand based triplet emitter

2016 ◽  
Vol 4 (17) ◽  
pp. 3792-3797 ◽  
Author(s):  
Chan Seok Oh ◽  
Jun Yeob Lee ◽  
Chang Ho Noh ◽  
Sung Han Kim
Keyword(s):  
Power Efficiency ◽  
Light Emitting Diodes ◽  
Molecular Design ◽  
Design Strategy ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Blue Phosphorescent ◽  
Triplet Emitter

Molecular design strategy to improve the power efficiency of blue phosphorescent organic light-emitting diodes was proposed by introducing a CN modified carbazole moiety.

scholarly journals Publisher’s Note: “The influence of torsion on excimer formation in bipolar host materials for blue phosphorescent OLEDs” [J. Chem. Phys. 144, 214906 (2016)]

2016 ◽  
Vol 144 (23) ◽  
pp. 239902
Author(s):  
Alexander A. Rudnick ◽  
Sergey Bagnich ◽  
Daniel Wagner ◽  
Stavros Athanasopoulos ◽  
Peter Strohriegl ◽  
...  
Keyword(s):  
Chem Phys ◽  
Host Materials ◽  
Excimer Formation ◽  
Blue Phosphorescent

Molecular design and synthetic approach to C2,C3,C4-modified carbazoles: high triplet energy bipolar host materials for efficient blue phosphorescent organic light emitting diodes

2019 ◽  
Vol 55 (56) ◽  
pp. 8178-8181 ◽  
Author(s):  
Rajendra Kumar Konidena ◽  
Kyung Hyung Lee ◽  
Jun Yeob Lee
Keyword(s):  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Synthetic Approach ◽  
Triplet Energy ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Blue Phosphorescent

Herein, we report the first examples of the design of and synthetic approach to C3/C4 and C2/C3/C4-modified carbazole based high triplet energy bipolar host materials for blue phosphorescent organic light emitting diodes.

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