High-Efficiency Polymer Light-Emitting Diodes with Stable Saturated Red Emission: Use of Carbazole-Based Copolymer Blends in a Poly(p-phenylenevinylene) Derivative

2003 ◽  
Vol 15 (10) ◽  
pp. 807-811 ◽  
Author(s):  
Y.-H. Niu ◽  
J. Huang ◽  
Y. Cao
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Red Emission ◽  
Light Emitting ◽  
Copolymer Blends ◽  
Polymer Light Emitting Diodes

High-efficiency new polymer light-emitting diodes with a stabilized blue emission

2005 ◽  
Author(s):  
Sung Heum Park ◽  
Jin Young Kim ◽  
Sun Hee Kim ◽  
Youngeup Jin ◽  
Jinwoo Kim ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Blue Emission ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes

Efficient near-infrared (NIR) polymer light-emitting diodes (PLEDs) based on heteroleptic iridium(iii) complexes with post-modification effects of intramolecular hydrogen bonding or BF2-chelation

2018 ◽  
Vol 6 (39) ◽  
pp. 10589-10596 ◽  
Author(s):  
Guorui Fu ◽  
Hao Zheng ◽  
Yani He ◽  
Wentao Li ◽  
Xingqiang Lü ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Near Infrared ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Intramolecular Hydrogen Bonding ◽  
Light Emitting ◽  
Nir Emission ◽  
Polymer Light Emitting Diodes ◽  
Post Modification ◽  
Intramolecular Hydrogen

Two new heteroleptic iridium(iii)-complexes capable of NIR emission are used to fabricate NIR-PLEDs with high efficiency and almost negligible efficiency-roll-off.

High-Efficiency White Organic Light-Emitting Diodes Using Blue and Red Phosphorescent Materials with Exciton Blocking Layer

2008 ◽  
Vol 8 (9) ◽  
pp. 4607-4610
Author(s):  
Jung Hyun Park ◽  
Ji Hoon Seo ◽  
Ji Hyun Seo ◽  
Seok Jae Lee ◽  
Ja Ryong Koo ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Blue Emission ◽  
Luminous Efficiency ◽  
Organic Light Emitting Diodes ◽  
Blocking Layer ◽  
Maximum Luminance ◽  
Red Emission ◽  
Light Emitting ◽  
Organic Light

High-efficiency white organic light-emitting diodes (WOLEDs) were fabricated with two emissive layers and an exciton blocking layer (EBL) was sandwiched between two phosphorescent dyes, bis(3,5-difluoro-2-(2-pyridyl)phenyl-(2-carboxypyridyl) iridium III (FIrpic) as the blue emission and iridium(III) bis(5-acetyl-2-phenylpyridinato-N,C2′) acetylacetonate ((acppy)2Ir(acac)) as the red emission. This EBL effectively prevented a triple–triple energy transfer between the two phosphorescent emissive layers with blue and red emission. The white device showed Commission Internationale De L'Eclairage (CIEx,y) coordinates of (0.33, 0.42) at 22400 cd/m2, a maximum luminance of 27300 cd/m2 at 13.2 V, and a maximum luminous efficiency of 26.9 cd/A.

Solution-Processed Anodes from Layer-Structure Materials for High-Efficiency Polymer Light-Emitting Diodes

2003 ◽  
Vol 125 (19) ◽  
pp. 5998-6007 ◽  
Author(s):  
Gitti L. Frey ◽  
Kieran J. Reynolds ◽  
Richard H. Friend ◽  
Hagai Cohen ◽  
Yishay Feldman
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Layer Structure ◽  
Solution Processed ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes
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