Triplet exciton confinement in phosphorescent polymer light-emitting diodes

2003 ◽  
Vol 82 (7) ◽  
pp. 1006-1008 ◽  
Author(s):  
Fang-Chung Chen ◽  
Gufeng He ◽  
Yang Yang
Keyword(s):  
Light Emitting Diodes ◽  
Triplet Exciton ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes ◽  
Triplet Exciton Confinement

Triplet exciton confinement for enhanced fluorescent organic light-emitting diodes using a co-host system

2016 ◽  
Vol 68 (10) ◽  
pp. 1228-1234 ◽  
Author(s):  
Han Kyu Yoo ◽  
Ho Won Lee ◽  
Song Eun Lee ◽  
Young Kwan Kim ◽  
Se Hyun Kim ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Triplet Exciton ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Host System ◽  
Organic Light ◽  
Triplet Exciton Confinement

Triplet Exciton Confinement in Green Organic Light-Emitting Diodes Containing Luminescent Charge-Transfer Cu(I) Complexes

2012 ◽  
Vol 22 (11) ◽  
pp. 2327-2336 ◽  
Author(s):  
Qisheng Zhang ◽  
Takeshi Komino ◽  
Shuping Huang ◽  
Shigeyuki Matsunami ◽  
Kenichi Goushi ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Light Emitting Diodes ◽  
Triplet Exciton ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Triplet Exciton Confinement

scholarly journals Efficient Triplet Exciton Fusion in Molecularly Doped Polymer Light-Emitting Diodes

2017 ◽  
Vol 29 (13) ◽  
pp. 1605987 ◽  
Author(s):  
Dawei Di ◽  
Le Yang ◽  
Johannes M. Richter ◽  
Lorenzo Meraldi ◽  
Rashid M. Altamimi ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Triplet Exciton ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes ◽  
Doped Polymer

Efficient triplet exciton confinement of white organic light-emitting diodes using a heavily doped phosphorescent blue emitter

2010 ◽  
Vol 518 (22) ◽  
pp. 6184-6187 ◽  
Author(s):  
Seok Jae Lee ◽  
Ji Hoon Seo ◽  
Jun Ho Kim ◽  
Hoe Min Kim ◽  
Kum Hee Lee ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Triplet Exciton ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Heavily Doped ◽  
Triplet Exciton Confinement

Injecting Inter-Layers and the Built-in Potential of Blue Polymer Light-Emitting Diodes

2000 ◽  
Vol 660 ◽  
Author(s):  
Thomas M. Brown ◽  
Ian S. Millard ◽  
David J. Lacey ◽  
Jeremy H. Burroughes ◽  
Richard H. Friend ◽  
...  
Keyword(s):  
Indium Tin Oxide ◽  
Light Emitting Diodes ◽  
Basic Structure ◽  
Thin Layers ◽  
Carrier Injection ◽  
Semiconducting Polymer ◽  
Light Emitting ◽  
Physical Mechanisms ◽  
Organic Solid ◽  
Polymer Light Emitting Diodes

ABSTRACTThe semiconducting-polymer/injecting-electrode heterojunction plays a crucial part in the operation of organic solid state devices. In polymer light-emitting diodes (LEDs), a common fundamental structure employed is Indium-Tin-Oxide/Polymer/Al. However, in order to fabricate efficient devices, alterations to this basic structure have to be carried out. The insertion of thin layers, between the electrodes and the emitting polymer, has been shown to greatly enhance LED performance, although the physical mechanisms underlying this effect remain unclear. Here, we use electro-absorption measurements of the built-in potential to monitor shifts in the barrier height at the electrode/polymer interface. We demonstrate that the main advantage brought about by inter-layers, such as poly(ethylenedioxythiophene)/poly(styrene sulphonic acid) (PEDOT:PSS) at the anode and Ca, LiF and CsF at the cathode, is a marked reduction of the barrier to carrier injection. The electro- absorption results also correlate with the electroluminescent characteristics of the LEDs.

Geometrically isomeric [Ir(iqbt)(ppy)(hpa)] complexes with differential molecule orientations for efficient near-infrared (NIR) polymer light-emitting diodes (PLEDs)

2021 ◽  
Vol 9 (36) ◽  
pp. 12068-12072
Author(s):  
Wentao Li ◽  
Jiaxiang Liu ◽  
Baowen Wang ◽  
Siyu Hou ◽  
Xingqiang Lü ◽  
...  
Keyword(s):  
Near Infrared ◽  
Light Emitting Diodes ◽  
Dipole Transition ◽  
Transition Dipole ◽  
Light Emitting ◽  
Horizontal Orientation ◽  
Polymer Light Emitting Diodes

Based on geometrical isomerisation of [Ir(C^N1)(C^N2)((N^O))]-tris-heteroleptic Ir(iii)-complexes, the augmented transition dipole transition (TMD) with a preferential horizontal orientation, which is beneficial for their NIR-phosphorescence, is reported.

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