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 Efficient non-doped blue organic light-emitting diodes: donor–acceptor type host materials

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 54078-54086 ◽  
Author(s):  
Jayaraman Jayabharathi ◽  
Palanisamy Sujatha ◽  
Venugopal Thanikachalam ◽  
Palanivel Jeeva ◽  
Pavadai Nethaji
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Type Host ◽  
Organic Light ◽  
Host Materials ◽  
Donor Acceptor

Blue devices with phenanthroimidazole OMeNPI-PITPA show maximum efficiencies ηex 4.90%; ηc 5.90 cd A−1 and are used as hosts for green OLEDs.

Utilizing 9,10-dihydroacridine and pyrazine-containing donor–acceptor host materials for highly efficient red phosphorescent organic light-emitting diodes

2016 ◽  
Vol 4 (33) ◽  
pp. 7869-7874 ◽  
Author(s):  
Xiang-Yang Liu ◽  
Feng Liang ◽  
Yi Yuan ◽  
Zuo-Quan Jiang ◽  
Liang-Sheng Liao
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Host Materials ◽  
Donor Acceptor

Utilizing 9,10-dihydroacridine and pyrazine-containing donor–acceptor host materials for highly efficient red phosphorescent organic light-emitting diodes.

Phenothiazine dioxide based high triplet energy host materials for blue phosphorescent organic light-emitting diodes

RSC Advances ◽  
2015 ◽  
Vol 5 (118) ◽  
pp. 97903-97909 ◽  
Author(s):  
In Ho Lee ◽  
Jun Yeob Lee
Keyword(s):  
Electron Transport ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Triplet Energy ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Donor Acceptor ◽  
Blue Phosphorescent

Donor–acceptor type high triplet energy host materials were derived from a phenothiazine dioxide based electron transport moiety and a carbazole based hole transport moiety.

High-efficiency red, green and blue phosphorescent homojunction organic light-emitting diodes based on bipolar host materials

2011 ◽  
Vol 12 (5) ◽  
pp. 843-850 ◽  
Author(s):  
Chao Cai ◽  
Shi-Jian Su ◽  
Takayuki Chiba ◽  
Hisahiro Sasabe ◽  
Yong-Jin Pu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Blue Phosphorescent

Tuning peripheral group density in ternary phosphine oxide hosts for low-voltage-driven yellow PhOLEDs

2015 ◽  
Vol 3 (26) ◽  
pp. 6709-6716 ◽  
Author(s):  
Jing Li ◽  
Zhensong Zhang ◽  
Chunmiao Han ◽  
Dongxue Ding ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Phosphine Oxide ◽  
Light Emitting Diodes ◽  
Low Voltage ◽  
Organic Light Emitting Diodes ◽  
Diphenylphosphine Oxide ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Group Density

Fluorene and diphenylphosphine oxide were employed as peripheral groups to construct ternary host materials DBFxPODEFn with benzofuran as a core, which realized the low-voltage-driven efficient yellow phosphorescence organic light-emitting diodes.

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