Novel iridium complexes as yellow phosphorescent emitters for single-layer yellow and white polymer light-emitting diodes

2016 ◽  
Vol 4 (27) ◽  
pp. 6626-6633 ◽  
Author(s):  
Aihui Liang ◽  
Gui Huang ◽  
Sheng Dong ◽  
Xiaoyan Zheng ◽  
Jia Zhu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Single Layer ◽  
Iridium Complexes ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Polymer Light Emitting Diodes ◽  
Polymer Light Emitting Devices

Both yellow and white polymer light-emitting devices are achieved using novel yellow phosphorescent iridium complexes with triphenylamine- and fluorene-functionalized cyclometalating ligands as dopants.

scholarly journals Synthesis and properties of hyperbranched polymers for white polymer light-emitting diodes

RSC Advances ◽  
2019 ◽  
Vol 9 (62) ◽  
pp. 36058-36065 ◽  
Author(s):  
Xuefeng Li ◽  
Haocheng Zhao ◽  
Long Gao ◽  
Xiaoling Xie ◽  
Weixuan Zhang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Three Dimensional ◽  
Hyperbranched Polymers ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Highly Efficient ◽  
Polymer Light Emitting Diodes ◽  
Polymer Light Emitting Devices ◽  
Hyperbranched Structure

A potential hyperbranched structure with fluorene-alt-carbazole branches, a three-dimensional-structured SDF core and red Ir(piq)2acac light adjusting units is synthesized for using in highly efficient white polymer light-emitting devices.

Inverted polymer light-emitting devices using a conjugated starburst macromolecule as an interlayer

RSC Advances ◽  
2016 ◽  
Vol 6 (87) ◽  
pp. 84342-84347 ◽  
Author(s):  
Shuangquan Chu ◽  
Yuehua Chen ◽  
Mengke Zhang ◽  
Xinwen Zhang ◽  
Weidong Xu ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Polymer Light Emitting Diodes ◽  
Polymer Light Emitting Devices

We have demonstrated efficient inverted polymer light-emitting diodes with an alcohol-soluble conjugated starburst macromolecule TrOH as the interlayer.

Highly efficient single-layer blue polymer light-emitting diodes based on hole-transporting group substituted poly(fluorene-co-dibenzothiophene-S,S-dioxide)

2017 ◽  
Vol 5 (37) ◽  
pp. 9680-9686 ◽  
Author(s):  
Feng Peng ◽  
Na Li ◽  
Lei Ying ◽  
Wenkai Zhong ◽  
Ting Guo ◽  
...  
Keyword(s):  
Blue Light ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Single Layer ◽  
Random Copolymer ◽  
Hole Transport ◽  
Light Emitting ◽  
Hole Transporting ◽  
Polymer Light Emitting Diodes ◽  
Copolymer Poly

We developed a series of high-performance blue light-emitting polymers that contain hole-transport moieties comprising carbazole or triphenylamine substituents in the side chains of random copolymer poly(fluorene-co-dibenzothiophene-S,S-dioxide) (PFSO).

Current-Voltage Characteristics of Single Layer Polymer Light Emitting Diodes Under High Intensity Electrical Excitation

1999 ◽  
Vol 561 ◽  
Author(s):  
B. Ruhstaller ◽  
J.C. Scott ◽  
P.J. Brock ◽  
S.A. Carter
Keyword(s):  
Electric Fields ◽  
High Intensity ◽  
Single Layer ◽  
Electrical Excitation ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Single Carrier ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Polymer Light Emitting Devices

ABSTRACTWe study the current-voltage characteristics of both double and single carrier polymer light emitting devices in the high intensity electrical excitation regime. Single layer devices are investigated with the orange-emitting MEH-PPV as the active polymer. Performing very low duty (≈0.001 %) pulsed electroluminescence measurements with electric fields up to 1*109 V/m, we observe for the hole-dominated devices a space charge limited current with a saturating mobility and a saturating external quantum efficiency of 1%. For double carrier devices, the current starts to saturate in the high-field regime, appoaching Ohmic-like behavior. We report current densities of 100 A/cm2and brightnesses of 7*105 cd/m2. The spectral features are monitored below the onset of degradation.

The effects of polymer molecular weight on the performance of single-layer polymer light emitting diodes

2013 ◽  
Vol T157 ◽  
pp. 014028 ◽  
Author(s):  
Mostafa Mergani ◽  
Afshin Shahalizad ◽  
Sohrab Ahmadi Kandjani ◽  
Mohammad Sadegh Zakerhamidi
Keyword(s):  
Molecular Weight ◽  
Light Emitting Diodes ◽  
Single Layer ◽  
Polymer Molecular Weight ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes

Thermal aging of single-layer polymer light-emitting diodes composed of a carbazole and oxadiazole containing copolymer doped with singlet or triplet emitters

2010 ◽  
Vol 160 (23-24) ◽  
pp. 2486-2493 ◽  
Author(s):  
Parul Rungta ◽  
Volodymyr Tsyalkovsky ◽  
Christopher F. Huebner ◽  
Yuriy P. Bandera ◽  
Stephen H. Foulger
Keyword(s):  
Thermal Aging ◽  
Light Emitting Diodes ◽  
Single Layer ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes
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