Degradation Analysis of Blue Phosphorescent Organic Light Emitting Diode by Impedance Spectroscopy and Transient Electroluminescence Spectroscopy

2009 ◽  
Vol E92-C (11) ◽  
pp. 1334-1339 ◽  
Author(s):  
Toshinari OGIWARA ◽  
Jun-ichi TAKAHASHI ◽  
Hitoshi KUMA ◽  
Yuichiro KAWAMURA ◽  
Toshihiro IWAKUMA ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Degradation Analysis ◽  
Transient Electroluminescence ◽  
Blue Phosphorescent

Cohosts with efficient host-to-emitter energy transfer for stable blue phosphorescent organic light-emitting diodes

2021 ◽  
Author(s):  
Soo-Ghang Ihn ◽  
Eun Suk Kwon ◽  
Yongsik Jung ◽  
Jong Soo Kim ◽  
Sungho Nam ◽  
...  
Keyword(s):  
Energy Transfer ◽  
High Performance ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Operating Voltage ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Low Efficiency ◽  
Blue Phosphorescent

We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m-2) with a low efficiency roll-off...

Degraded Efficiency of Blue Phosphorescent Organic Light-Emitting Diode Through Aging in Ambient Condition

2016 ◽  
Vol 16 (10) ◽  
pp. 10319-10324
Author(s):  
Sungkyu Lee ◽  
Ho Won Lee ◽  
Inyeob Na ◽  
Song Eun Lee ◽  
Jae Woo Lee ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Ambient Condition ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Blue Phosphorescent

Impedance spectroscopy of OLEDs as a tool for estimating mobility and the concentration of charge carriers in transport layers

2018 ◽  
Vol 6 (5) ◽  
pp. 1008-1014 ◽  
Author(s):  
P. Chulkin ◽  
O. Vybornyi ◽  
M. Lapkowski ◽  
P. J. Skabara ◽  
P. Data
Keyword(s):  
Impedance Spectroscopy ◽  
Light Emitting Diode ◽  
Charge Carriers ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Multi Stage ◽  
Mobility Of Charge Carriers

An impedance spectroscopy based multi-stage technique was worked out to evaluate the mobility of charge carriers (holes and electrons) along with their concentrations at different applied voltages during OLED (organic light emitting diode) operation.

Enhanced Efficiency of Blue Phosphorescent Organic Light-Emitting Diode Base on Triple-Emitting Layer with Mixed Host System

2014 ◽  
Vol 14 (8) ◽  
pp. 6056-6059
Author(s):  
Dong Hwan Lim ◽  
Seok Jae Lee ◽  
Hyun Su Shin ◽  
Dong Hyung Lee ◽  
Kum Hee Lee ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Light Emitting ◽  
Host System ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Blue Phosphorescent
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