Tailored Highly Transparent Composite Hole-Injection Layer Consisting of Pedot:PSS and SiO2 Nanoparticles for Efficient Polymer Light-Emitting Diodes

2010 ◽  
Vol 23 (6) ◽  
pp. 740-745 ◽  
Author(s):  
Boris Riedel ◽  
Yuxin Shen ◽  
Julian Hauss ◽  
Markus Aichholz ◽  
Xiaochen Tang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Sio2 Nanoparticles ◽  
Hole Injection ◽  
Light Emitting ◽  
Hole Injection Layer ◽  
Polymer Light Emitting Diodes ◽  
Transparent Composite

pH-neutral PEDOT:PSS as hole injection layer in polymer light emitting diodes

2011 ◽  
Vol 12 (3) ◽  
pp. 504-508 ◽  
Author(s):  
Sha Wu ◽  
Shaohu Han ◽  
Yina Zheng ◽  
Hua Zheng ◽  
Nanliu Liu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Hole Injection ◽  
Light Emitting ◽  
Hole Injection Layer ◽  
Polymer Light Emitting Diodes

scholarly journals Polymer Light-Emitting Diodes Efficiency Dependence on Bipolar Charge Traps Concentration

2009 ◽  
Vol 2009 ◽  
pp. 1-4 ◽  
Author(s):  
Luis Morgado ◽  
Luis Alcácer ◽  
Jorge Morgado
Keyword(s):  
Sulfonic Acid ◽  
Light Emitting Diodes ◽  
Hole Injection ◽  
Electron Trapping ◽  
Light Emitting ◽  
Hole Injection Layer ◽  
Polystyrene Sulfonic Acid ◽  
Polymer Light Emitting Diodes ◽  
Simultaneous Doping ◽  
Bipolar Charge

The efficiency of light-emitting diodes (LEDs) based on poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-1,4-benzo-{2,1′-3}-thiadiazole)], F8BT, is optimized upon simultaneous doping with a hole and an electron trapping molecule, namely, N,N′-Bis(3-methylphenyl)-N,N′-diphenylbenzidine and 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole, respectively. It is shown that, for devices with poly(3,4-ethylene dioxythiophene) doped with polystyrene sulfonic acid as hole-injection layer material and magnesium cathodes, the efficiency is nearly doubled (from ca. 2.5 to 3.7 cd/A) upon doping with ca. 0.34% by weight of both compounds.

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