Non-doped luminescent material based organic light-emitting devices displaying high brightness under very low driving voltage

2016 ◽  
Vol 4 (29) ◽  
pp. 7013-7019 ◽  
Author(s):  
Chenglong Li ◽  
Jinbei Wei ◽  
Xiaoxian Song ◽  
Kaiqi Ye ◽  
Hongyu Zhang ◽  
...  
Keyword(s):  
Driving Voltage ◽  
Luminescent Material ◽  
High Brightness ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

Two phenanthro[9,10-d]imidazole (PI) derivatives, DPAA-PPI and tBuDPAA-PPI, were synthesized. The non-doped OLEDs with DPAA-PPI and tBuDPAA-PPI as emitters displayed very low driving voltages, high brightness and maximum external quantum efficiencies (EQE) of 5.2% and 4.1%, respectively.

Efficient Low-Driving-Voltage Blue Phosphorescent Homojunction Organic Light-Emitting Devices

2011 ◽  
Vol 50 (4) ◽  
pp. 040204 ◽  
Author(s):  
Chao Cai ◽  
Shi-Jian Su ◽  
Takayuki Chiba ◽  
Hisahiro Sasabe ◽  
Yong-Jin Pu ◽  
...  
Keyword(s):  
Driving Voltage ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
Blue Phosphorescent

Solution-processable cyclometalated gold(III) complexes for high-brightness phosphorescent white organic light-emitting devices

2020 ◽  
Vol 55 (23) ◽  
pp. 9686-9694
Author(s):  
Wai-Lung Cheung ◽  
Shiu-Lun Lai ◽  
Wing-Kei Kwok ◽  
Man-Chung Tang ◽  
Chin-Ho Lee ◽  
...  
Keyword(s):  
High Brightness ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Solution Processable ◽  
Organic Light Emitting Devices

Driving and Application of Blue Light Organic Light Emitting Devices

2019 ◽  
Vol 11 (5) ◽  
pp. 711-717
Author(s):  
Hongbo Liu ◽  
Minghui Liu ◽  
Lin Cong ◽  
Lizhong Wang ◽  
Tao Huang ◽  
...  
Keyword(s):  
Blue Light ◽  
High Efficiency ◽  
Low Voltage ◽  
Red Light ◽  
Portable Devices ◽  
Driving Voltage ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

The DPVBi (4,4′-bis(2,2-diphenylvinyl-1,1′-biphenyl) is a blue-light organic fluorescence doped material, which can be used as a hole barrier layer or a luminescent layer for fabricating organic light-emitting devices. A blue light device with stable color stability and high efficiency was prepared by co-doping blue light dye DPVBi and red light dye DCJTB as light-emitting layer. In order to prevent the infiltration of O2 and moisture inside the device from affecting the luminescence lifetime of the device, the device was encapsulated by atomic layer deposition. Since the driving voltage of the organic light-emitting device is generally above 5 V and the power consumption is low, in order to facilitate driving with a low voltage, a boost driving circuit based on the XL6009 chip was designed. The driver of the fabricated blue-light device was tested. The results showed that circuit had low-voltage drive characteristics and could be widely used in small toys, lighting, and portable devices. Through the test to achieve the desired goal, the requirements of low voltage and low energy consumption were realized, and the life of the light-emitting device can be tested, which has certain practicability and reference value.

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