Improved Efficiency of Single-Layer Polymer Light-Emitting Devices with Poly(vinylcarbazole) Doubly Doped with Phosphorescent and Fluorescent Dyes as the Emitting Layer

2003 ◽  
Vol 13 (8) ◽  
pp. 603-608 ◽  
Author(s):  
S. Kan ◽  
X. Liu ◽  
F. Shen ◽  
J. Zhang ◽  
Y. Ma ◽  
...  
Keyword(s):  
Fluorescent Dyes ◽  
Single Layer ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Polymer Light Emitting Devices

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.

Enhanced carrier balance by organic salt doping in single-layer polymer light-emitting devices

2009 ◽  
Vol 10 (7) ◽  
pp. 1345-1351 ◽  
Author(s):  
Dong-Hyun Lee ◽  
Jong Hyeok Park ◽  
Heeyeop Chae ◽  
Sung M. Cho
Keyword(s):  
Single Layer ◽  
Organic Salt ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Polymer Light Emitting Devices

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.

The Silica-Coated Gold Nanoparticles Encapsulation of Plastic Polymer Light- Emitting Devices

2019 ◽  
Vol 19 (15) ◽  
pp. 9-15 ◽  
Author(s):  
Pin-Hsiang Chiu ◽  
Kan-Lin Chen ◽  
Chien-Jung Huang ◽  
Jenn-Kai Tsai ◽  
Cheng-Fu Yang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Polymer Light Emitting Devices

Direct Sub-Micrometer-Patterning of Conjugated Polymers and Polymer Light-Emitting Devices by Electron Beam Lithography

2010 ◽  
Vol 211 (13) ◽  
pp. 1402-1407 ◽  
Author(s):  
Evelin Fisslthaler ◽  
Meltem Sezen ◽  
Harald Plank ◽  
Alexander Blümel ◽  
Stefan Sax ◽  
...  
Keyword(s):  
Electron Beam ◽  
Conjugated Polymers ◽  
Electron Beam Lithography ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Polymer Light Emitting Devices

Dramatic efficiency improvement in single-layer orange phosphorescent organic light-emitting devices with suppressed efficiency roll-off

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 55017-55021 ◽  
Author(s):  
Liangmei Zuo ◽  
Guangguang Han ◽  
Ren Sheng ◽  
Kaiwen Xue ◽  
Yu Duan ◽  
...  
Keyword(s):  
Current Efficiency ◽  
Single Layer ◽  
Efficiency Improvement ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
A Current

We have successfully demonstrated efficient single-layer organic light-emitting devices (OLEDs) with a current efficiency of 31.38 cd A−1.

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