Low voltage red phosphorescent organic light-emitting devices with triphenylphosphine oxide and 4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl electron transport layers

2010 ◽  
Vol 10 (4) ◽  
pp. 1108-1111 ◽  
Author(s):  
Tae-Yong Kim ◽  
Dae-Gyu Moon
Keyword(s):  
Electron Transport ◽  
Low Voltage ◽  
Triphenylphosphine Oxide ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

Improved properties of organic light-emitting devices by utilizing CsN3 n-type doped electron transport layer

2016 ◽  
Vol 31 (8) ◽  
pp. 773-777
Author(s):  
于瑶瑶 YU Yao-yao ◽  
陈星明 CHEN Xing-ming ◽  
金玉 JIN Yu ◽  
吴志军 WU Zhi-jun ◽  
陈燕 CHEN Yan
Keyword(s):  
Electron Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
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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