Highly crystalline organic light emitting diode for high current density operation

2020 ◽  
Author(s):  
Shu-Jen Wang ◽  
Stefan Meister ◽  
Michael Sawatzki ◽  
Hans Kleemann ◽  
Karl Leo
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Light Emitting Diode ◽  
High Current ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

High efficiency Green Organic Light-emitting Diode Without Roll-off Under High Current Density

2015 ◽  
Vol 36 (11) ◽  
pp. 1307-1310
Author(s):  
田苗苗 TIAN Miao-miao ◽  
贺小光 HE Xiao-guang ◽  
祁金刚 QI Jin-gang ◽  
王 宁 Wang Ning
Keyword(s):  
Current Density ◽  
High Efficiency ◽  
High Current Density ◽  
Light Emitting Diode ◽  
High Current ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

Optimization for white organic light-emitting diode based on DCJTB as color conversion layer

2018 ◽  
Vol 32 (27) ◽  
pp. 1850299
Author(s):  
Pei Wang ◽  
Zhen Wang ◽  
Ai Chen ◽  
Jia-Feng Xie ◽  
Xin Zheng
Keyword(s):  
Current Efficiency ◽  
Current Density ◽  
White Light ◽  
Power Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
High Efficient ◽  
Color Conversion

In this paper, combining phosphorescence and fluorescence to form white light was realized based on DCJTB:PMMA/ITO/NPB/TCTA/FIrpic:TCTA/TPBi/Ir(ppy)3:TPBi/TPBi/Cs2CO3/Al. The effects of red fluorescence on this white light device was studied by adjusting the concentration of DCJTB. The study shows that the device with a DCJTB concentration of 0.7% in the color conversion layer (CCL) generates a peak current efficiency and power efficiency of 23.4 cd ⋅ A[Formula: see text] and 7.5 lm ⋅ W[Formula: see text], respectively. And it is closest to the equal-energy white point of (0.33, 0.33) which shows a CIE (Commission Internationale de L’Eclairage) coordinate of (0.35, 0.43) and a color rendering index (CRI) of 70 at current density of 10 mA ⋅ cm[Formula: see text]. In order to improve the efficiency, we design and fabricate both high efficient and pure white organic light-emitting diode (WOLED) by replacing the single blue emission layer (EML) with double EMLs of FIrpic:TCTA and FIrpic:TPBi. The further study shows that, when the layers of EML is three and the concentration of DCJTB at 0.7%, the device exhibits good performance specifically, at current density of 10 mA ⋅ cm[Formula: see text], the current efficiency of 28.2 cd ⋅ A[Formula: see text] (power efficiency of 10.3 lm ⋅ W[Formula: see text]), and the CIE coordinate of (0.33, 0.31) (CRI of 80.38).

scholarly journals Nano-Alignment in Semiconducting Polymer Films: A Path to Achieve High Current Density and Brightness in Organic Light Emitting Transistors

ACS Photonics ◽  
2018 ◽  
Vol 5 (6) ◽  
pp. 2137-2144 ◽  
Author(s):  
Mujeeb Ullah Chaudhry ◽  
Khalid Muhieddine ◽  
Robert Wawrzinek ◽  
Jun Li ◽  
Shih-Chun Lo ◽  
...  
Keyword(s):  
Current Density ◽  
Polymer Films ◽  
High Current Density ◽  
High Current ◽  
Semiconducting Polymer ◽  
Light Emitting ◽  
Organic Light ◽  
Light Emitting Transistors

scholarly journals Low roll-off of efficiency at high current density in phosphorescent organic light emitting diodes

2007 ◽  
Vol 90 (22) ◽  
pp. 223508 ◽  
Author(s):  
Jae-Wook Kang ◽  
Se-Hyung Lee ◽  
Hyung-Dol Park ◽  
Won-Ik Jeong ◽  
Kyung-Mo Yoo ◽  
...  
Keyword(s):  
Current Density ◽  
Light Emitting Diodes ◽  
High Current Density ◽  
Organic Light Emitting Diodes ◽  
High Current ◽  
Light Emitting ◽  
Organic Light

Current-Confinement Structure and Extremely High Current Density in Organic Light-Emitting Transistors

2012 ◽  
Vol 24 (46) ◽  
pp. 6141-6146 ◽  
Author(s):  
Kosuke Sawabe ◽  
Masaki Imakawa ◽  
Masaki Nakano ◽  
Takeshi Yamao ◽  
Shu Hotta ◽  
...  
Keyword(s):  
Current Density ◽  
High Current Density ◽  
High Current ◽  
Light Emitting ◽  
Organic Light ◽  
Current Confinement ◽  
Light Emitting Transistors
Sign in / Sign up

Export Citation Format

Share Document