Novel Oxadiazole Side Chain Conjugated Polymers as Single-Layer Light-Emitting Diodes with Improved Quantum Efficiencies

1998 ◽  
Vol 10 (5) ◽  
pp. 1201-1204 ◽  
Author(s):  
Zhenan Bao ◽  
Zhonghua Peng ◽  
Mary E. Galvin ◽  
Edwin A. Chandross
Keyword(s):  
Conjugated Polymers ◽  
Light Emitting Diodes ◽  
Single Layer ◽  
Side Chain ◽  
Light Emitting

scholarly journals Side-chain conjugated polymers for use in the active layers of hybrid semiconducting polymer/quantum dot light emitting diodes

2016 ◽  
Vol 7 (1) ◽  
pp. 101-112 ◽  
Author(s):  
Ana Fokina ◽  
Yeonkyung Lee ◽  
Jun Hyuk Chang ◽  
Lydia Braun ◽  
Wan Ki Bae ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Conjugated Polymers ◽  
Light Emitting Diodes ◽  
Side Chain ◽  
Hybrid Polymer ◽  
Semiconducting Polymer ◽  
Light Emitting ◽  
Active Layers

Three monomers,M1–M3, with modified carbazole cores and styrene functionality were polymerized by RAFT. The polymers were then used in the active layers of hybrid polymer/quantum dot light emitting diodes.

Side-Chain Polymer Liquid Crystals Containing Oxadiazole and Amine Moieties with Carrier-Transporting Abilities for Single-Layer Light-Emitting Diodes

2003 ◽  
Vol 107 (21) ◽  
pp. 4887-4893 ◽  
Author(s):  
Masuki Kawamoto ◽  
Hiroyuki Mochizuki ◽  
Atsushi Shishido ◽  
Osamu Tsutsumi ◽  
Tomiki Ikeda ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Light Emitting Diodes ◽  
Single Layer ◽  
Side Chain ◽  
Chain Polymer ◽  
Light Emitting ◽  
Polymer Liquid ◽  
Polymer Liquid Crystals

Light-Emitting Diodes from Fluorene-Based π-Conjugated Polymers

2000 ◽  
Vol 12 (7) ◽  
pp. 1931-1936 ◽  
Author(s):  
Anne Donat-Bouillud ◽  
Isabelle Lévesque ◽  
Ye Tao ◽  
Marie D'Iorio ◽  
Serge Beaupré, ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Light Emitting Diodes ◽  
Light Emitting

Light-Emitting Diodes Based on Conjugated Polymers: Control of Colour and Efficiency

1992 ◽  
Vol 247 ◽  
Author(s):  
Paul L. Burn ◽  
A. B. Holmes ◽  
A. Kraft ◽  
A. R. Brown ◽  
D. D. C. Bradley ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Conjugated Polymers ◽  
Light Emitting Diodes ◽  
Fold Increase ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Metal Contacts ◽  
Light Emitting ◽  
Lithographic Patterning ◽  
Energy Gaps

ABSTRACTStudies of the effect of different electrode combinations on the device characteristics of simple three layer light-emitting diodes (LEDs) prepared with poly(ρ-phenylenevinylene) (PPV) as the emissive layer sandwiched between two metal contacts have shown that it is generally more difficult to inject electrons than holes. In order to improve the efficiency of such devices it is, therefore, necessary to develop methods to enhance the injection of electrons and we illustrate here one example where we have successfully achieved this by the introduction of a further, electron transport, layer. The result is an eight fold increase in efficiency over our best three layer PPV devices. The efficiency is also dependent on the details of the polymer electronic structure and using a family of copolymers we have been able to produce enhancements in efficiency to values of up to 30 times that of the corresponding PPV devices. Variations in the polymer electronic structure also affect the colour of emission and the same family of copolymers allow control of emission colour from blue/green to orange/red. Supramolecular control of the copolymer electronic structure can be achieved by lithographic patterning and we show that it is possible to produce regions within a single polymer film that possess different π-π* energy gaps.

Efficient single layer RGB phosphorescent organic light-emitting diodes

2009 ◽  
Vol 10 (6) ◽  
pp. 1146-1151 ◽  
Author(s):  
Zhiwei Liu ◽  
Michael G. Helander ◽  
Zhibin Wang ◽  
Zhenghong Lu
Keyword(s):  
Light Emitting Diodes ◽  
Single Layer ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light
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