Efficiency Improvement of Organic Light Emitting Diodes with Co-Deposited Hole Blocking Layer

C.H. Liu; C.H. Tesng; Chin-Pao Cheng

doi:10.4028/www.scientific.net/DDF.297-301.561

Paper Titles

Investigation of Thermal Properties of Thin Semiconductor Layers Deposited on a Glass Substrate by the Photothermal Deflection Technique
p.537

The Effect of Pressure on the Phase Transition of Pd₃Cu Alloy
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Evaluations of Hydrogen Permeation on TiN-20wt.%Co Membrane by Hot Press Sintering
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Influences of Dye Doping and Hole Blocking Layer Insertion on OLED Performance
p.555

Efficiency Improvement of Organic Light Emitting Diodes with Co-Deposited Hole Blocking Layer
p.561

Intermetallic Growth: Structure-Sensitive Effects
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The Kinetics of Gas Nitrided Layer Growth on Austenitic Stainless Steel
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Microstructure and Properties of Nanoclay Reinforced Asphalt Binders
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Effect of a Shield on Mixed Convection in a Rectangular Enclosure with Moving Cold Sidewalls and a Heat Source on the Bottom Wall
p.584

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 297-301Efficiency Improvement of Organic Light Emitting...

Efficiency Improvement of Organic Light Emitting Diodes with Co-Deposited Hole Blocking Layer

Abstract:

There are several kinds of methods in improving the efficiency of organic light emitting diodes (OLEDs). In this work, we used a co-deposited hole blocking layer to improve the efficiency of OLEDs. The structure of the component is: ITO/ MTDATA(15 nm) /NPB(40 nm) /BCP(10 nm) /BCP: Alq(15 nm) /LiF(0.7 nm)/ Al(180 nm). We changed the mixing rate of the BCP:Alq layer to be capable of hole blocking and electron transporting, and then improved the efficiency of OLEDs. Finally, we prepared white light OLED with doping Rubrene in NPB. When the concentration of the NPB: Rubrene layer was 2.0 wt.%, the device could emit the white light at 100 mA/cm2, and the luminance was above 2300 cd/m2, and the color coordinate was x = 0.36, y = 0.37.