White light generation through yellow nanophosphor and blue organic light-emitting diode

2009 ◽  
Vol 246 (4) ◽  
pp. 897-899 ◽  
Author(s):  
Je Hong Park ◽  
Nak Won Jang ◽  
Jong Su Kim ◽  
Yong Seok Jeong
Keyword(s):  
White Light ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
White Light Generation ◽  
Light Generation

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

The novel design of a remote phosphor ceramic plate for white light generation in high power LEDs

2015 ◽  
Vol 3 (24) ◽  
pp. 6148-6152 ◽  
Author(s):  
Young Hyun Song ◽  
Gill Sang Han ◽  
Eun Kyung Ji ◽  
Min-Ji Lee ◽  
Ye Lim Song ◽  
...  
Keyword(s):  
White Light ◽  
High Power ◽  
Light Emitting Diode ◽  
Ceramic Plate ◽  
The Novel ◽  
Light Emitting ◽  
White Light Generation ◽  
Remote Phosphor ◽  
Light Generation ◽  
Novel Design

Here, we report a phosphor ceramic plate (PCP) constructed using Y3Al5O12:Ce3+ (YAG:Ce) nanoparticles (NPs) with a uniform spherical size distribution for high-power light emitting diode (LED) applications.

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