Diarylfluorene Flexible Pendant Functionalization of Polystyrene for Efficient and Stable Deep-Blue Polymer Light-Emitting Diodes

2021 ◽  
Author(s):  
Ning Sun ◽  
Yamin Han ◽  
Lili Sun ◽  
Man Xu ◽  
Kai Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Polymer Light Emitting Diodes

P-146: Fluorene-Based Deep Blue Polymer Light-Emitting Diodes

2005 ◽  
Vol 36 (1) ◽  
pp. 858 ◽  
Author(s):  
Yong Kyun Lee ◽  
Soon Kab Kwon ◽  
Moon Hyo Kang ◽  
Jun Young Kim ◽  
Tae Jin Park ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Polymer Light Emitting Diodes

scholarly journals Deep blue polymer light emitting diodes based on easy to synthesize, non-aggregating polypyrene

2011 ◽  
Vol 19 (S6) ◽  
pp. A1281 ◽  
Author(s):  
Roman Trattnig ◽  
Teresa M. Figueira-Duarte ◽  
Dominik Lorbach ◽  
Wolfgang Wiedemair ◽  
Stefan Sax ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Polymer Light Emitting Diodes

scholarly journals High brightness deep blue/violet fluorescent polymer light-emitting diodes (PLEDs)

2015 ◽  
Vol 3 (37) ◽  
pp. 9664-9669 ◽  
Author(s):  
Javan H. Cook ◽  
José Santos ◽  
Hameed A. Al-Attar ◽  
Martin R. Bryce ◽  
Andrew P. Monkman
Keyword(s):  
Light Emitting Diodes ◽  
High Brightness ◽  
Light Emitting ◽  
Deep Blue ◽  
Polymer Light Emitting Diodes ◽  
Fluorescent Polymer

New deep blue/violet emitting co-polymers are reported. In simple PLED architectures efficiency values as high as ηext,max 1.4% and Lmax 565 cd m−2 with CIEx,y (0.16, 0.07) are obtained.

Highly emissive carbazole-functionalized homopoly(spirobifluorene) for deep-blue polymer light-emitting diodes

2017 ◽  
Vol 8 (14) ◽  
pp. 2182-2188 ◽  
Author(s):  
Keyan Bai ◽  
Shumeng Wang ◽  
Lei Zhao ◽  
Junqiao Ding ◽  
Lixiang Wang
Keyword(s):  
Light Emitting Diodes ◽  
Side Chain ◽  
Light Emitting ◽  
Deep Blue ◽  
Polymer Light Emitting Diodes

By fully replacing the alkyloxy side chain with a carbazole, a highly emissive homopolymer P(Cz-SF) is developed for deep-blue PLEDs.

scholarly journals Efficient deep blue fluorescent polymer light-emitting diodes (PLEDs)

2014 ◽  
Vol 2 (28) ◽  
pp. 5587-5592 ◽  
Author(s):  
Javan H. Cook ◽  
José Santos ◽  
Haiying Li ◽  
Hameed A. Al-Attar ◽  
Martin R. Bryce ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Deep Blue ◽  
Polymer Light Emitting Diodes ◽  
Fluorescent Polymer

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.

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