scholarly journals High-purity white light from a simple single dopant host-guest white organic light-emitting diode architecture

2008 ◽  
Vol 93 (16) ◽  
pp. 163302 ◽  
Author(s):  
Pavel Anzenbacher ◽  
Victor A. Montes ◽  
Shin-ya Takizawa
Keyword(s):  
White Light ◽  
High Purity ◽  
Light Emitting Diode ◽  
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).

Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter

2014 ◽  
Vol 23 (7) ◽  
pp. 077802 ◽  
Author(s):  
Na Wei ◽  
Kun-Ping Guo ◽  
Peng-Chao Zhou ◽  
Jian-Ning Yu ◽  
Bin Wei ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

White light emission from a single layer organic light emitting diode fabricated by spincoating

2000 ◽  
Vol 325 (1-3) ◽  
pp. 251-256 ◽  
Author(s):  
J.P Yang ◽  
Y.D Jin ◽  
P.L Heremans ◽  
R Hoefnagels ◽  
P Dieltiens ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
Light Emitting Diode ◽  
Single Layer ◽  
White Light Emission ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

Effects of Nitridation Time on Top-emission Inverted Organic Light Emitting Diode

PIERS Online ◽  
2007 ◽  
Vol 3 (6) ◽  
pp. 821-824 ◽  
Author(s):  
Chien-Chang Tseng ◽  
Liang-Wen Ji ◽  
Yu Sheng Tsai ◽  
Fuh-Shyang Juang
Keyword(s):  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Nitridation Time ◽  
Organic Light
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