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
1999 ◽  
Vol 561 ◽  
Author(s):  
B. Ruhstaller ◽  
J.C. Scott ◽  
P.J. Brock ◽  
S.A. Carter

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.


2016 ◽  
Vol 4 (27) ◽  
pp. 6626-6633 ◽  
Author(s):  
Aihui Liang ◽  
Gui Huang ◽  
Sheng Dong ◽  
Xiaoyan Zheng ◽  
Jia Zhu ◽  
...  

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.


2009 ◽  
Vol 48 (11) ◽  
pp. 110203 ◽  
Author(s):  
Dong-Hyun Lee ◽  
Jong Hyeok Park ◽  
Heeyeop Chae ◽  
Sung M. Cho

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

Sign in / Sign up

Export Citation Format

Share Document