Simplified single-emitting-layer hybrid white organic light-emitting diodes with high efficiency, low efficiency roll-off, high color rendering index and superior color stability

2017 ◽  
Vol 49 ◽  
pp. 242-248 ◽  
Author(s):  
Pengcheng Wei ◽  
Dongdong Zhang ◽  
Minghan Cai ◽  
Xiaozeng Song ◽  
Zheyao Wang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Color Stability ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Color Rendering Index ◽  
Low Efficiency ◽  
Color Rendering

Efficient co-doped white organic light-emitting diodes with high color stability and color rendering index

Displays ◽  
2011 ◽  
Vol 32 (5) ◽  
pp. 320-324 ◽  
Author(s):  
Xue Chen ◽  
Wenqing Zhu ◽  
Sai Wang ◽  
Feng Xu ◽  
Hong Xu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Color Stability ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Color Rendering Index ◽  
Color Rendering ◽  
Co Doped

Use of Versatile Binaphthalene Derivative in Chromatic-Stability Non-Doped White Organic Light Emitting Diodes

2012 ◽  
Vol 490-495 ◽  
pp. 3887-3891
Author(s):  
Fei Fei Wang ◽  
Yan Fang Lv ◽  
Peng Chao Zhou ◽  
Hong Lin ◽  
Na Wei ◽  
...  
Keyword(s):  
Thin Layer ◽  
Current Efficiency ◽  
Current Density ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Color Rendering Index ◽  
Low Efficiency ◽  
Color Rendering

We have investigated the properties of the ultra-thin layer all-fluorescent nondoped white organic light emitting diodes based on blue-emitting binaphthalene derivative (BN) and ultra-thin green and red emitters. By optimizing the thickness of BN, we found that the device exhibited a high color rendering index (CRI) of 84 and high chromatic-stability with the Commission International de L’Eclairage coordinates shifting from (0.26, 0.32) to (0.27, 0.33) as the luminance increased from 40 to 10645 cd/m2. In addition, we also achieved a low current efficiency roll-off, which current efficiency only reduced from 3.77 cd/A to 3.36 cd/A when the current density increased from 13 mA/cm2 to 104 mA/cm2. High CRI and low efficiency roll-off are of significance for the applications of organic light-emitting diodes in display and lighting.

White Organic Light-emitting Diodes with High Color Rendering Index Using Phosphorescent Sensitizer and Blue Fluorescent Emitter

2012 ◽  
Vol 33 (1) ◽  
pp. 97-101
Author(s):  
张世明 ZHANG Shi-ming ◽  
陈宇 CHEN Yu ◽  
王学会 WANG Xue-hui ◽  
张振松 ZHANG Zhen-song ◽  
岳守振 YUE Shou-zhen ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Color Rendering Index ◽  
Color Rendering
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