Highly circularly polarized electroluminescence from organic light-emitting diodes with wide-band reflective polymeric cholesteric liquid crystal films

2007 ◽  
Vol 90 (21) ◽  
pp. 211106 ◽  
Author(s):  
Soon Moon Jeong ◽  
Youko Ohtsuka ◽  
Na Young Ha ◽  
Yoichi Takanishi ◽  
Ken Ishikawa ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Light Emitting Diodes ◽  
Cholesteric Liquid Crystal ◽  
Wide Band ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Circularly Polarized ◽  
Liquid Crystal Films ◽  
Organic Light ◽  
Crystal Films

Sharply directed emission in microcavity organic light-emitting diodes with a cholesteric liquid crystal film

2007 ◽  
Vol 273 (1) ◽  
pp. 167-172 ◽  
Author(s):  
Soon Moon Jeong ◽  
Yoichi Takanishi ◽  
Ken Ishikawa ◽  
Suzushi Nishimura ◽  
Goroh Suzaki ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Light Emitting Diodes ◽  
Cholesteric Liquid Crystal ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Crystal Film

Configurationally stable helical tetradentate Pt(II) complexes for organic light-emitting diodes with circularly polarized electroluminescence

2021 ◽  
Author(s):  
Li Yuan ◽  
Ting-Ting Liu ◽  
Meng-Xi Mao ◽  
Xu-Feng Luo ◽  
You-Xuan Zheng
Keyword(s):  
Steric Hindrance ◽  
Light Emitting Diodes ◽  
Helical Structure ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Circularly Polarized ◽  
Organic Light

In this study, three pairs of tetradentate Pt(II) enantiomers with helical structure are reported. By changing a six-membered to five-membered metallocycle and replacing quinoline by benzo[h]quinoline with greater steric hindrance,...

Non-doped and doped circularly polarized organic light-emitting diodes with high performances based on chiral octahydro-binaphthyl delayed fluorescent luminophores

2019 ◽  
Vol 7 (23) ◽  
pp. 7045-7052 ◽  
Author(s):  
Zheng-Guang Wu ◽  
Zhi-Ping Yan ◽  
Xu-Feng Luo ◽  
Li Yuan ◽  
Wei-Qiu Liang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Circularly Polarized ◽  
Organic Light ◽  
Fluorescent Materials ◽  
Low Efficiency

Two circularly polarized delayed fluorescent materials were applied in non-doped and doped CP-OLEDs with |gEL| up to 2.9 × 10−3, an EQEmax of 12.4% and a low efficiency roll-off.

Configurationally Stable Platinahelicene Enantiomers for Efficient Circularly Polarized Phosphorescent Organic Light‐Emitting Diodes

2019 ◽  
Vol 25 (22) ◽  
pp. 5672-5676 ◽  
Author(s):  
Zhi‐Ping Yan ◽  
Xu‐Feng Luo ◽  
Wei‐Qiang Liu ◽  
Zheng‐Guang Wu ◽  
Xiao Liang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Circularly Polarized ◽  
Organic Light

Room temperature perylene based columnar liquid crystals as solid-state fluorescent emitters in solution-processable organic light-emitting diodes

2020 ◽  
Vol 8 (36) ◽  
pp. 12485-12494 ◽  
Author(s):  
Indu Bala ◽  
Nitya Singh ◽  
Rohit Ashok Kumar Yadav ◽  
Joydip De ◽  
Santosh Prasad Gupta ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Solid State ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Room Temperature ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

Perylene tetraesters based columnar liquid crystal employed as solid-state fluorescent emitter in solution-processed OLEDs and enables to achieve maximum external quantum efficiency of 6.5%.

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