Enhancing power conversion efficiencies and operational stability of organic light-emitting diodes by increasing carrier injection efficiencies at anode/organic and organic/organic heterojunction interfaces

2008 ◽  
Vol 104 (3) ◽  
pp. 034507 ◽  
Author(s):  
Toshinori Matsushima ◽  
Hideyuki Murata
Keyword(s):  
Light Emitting Diodes ◽  
Power Conversion ◽  
Operational Stability ◽  
Organic Light Emitting Diodes ◽  
Carrier Injection ◽  
Light Emitting ◽  
Organic Light ◽  
Conversion Efficiencies

High efficiency yellow organic light emitting diodes with a balanced carrier injection co-host structure

2013 ◽  
Vol 1 (33) ◽  
pp. 5110 ◽  
Author(s):  
Jwo-Huei Jou ◽  
Hui-Huan Yu ◽  
You-Xing Lin ◽  
Jing-Ru Tseng ◽  
Shiang-Hau Peng ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Carrier Injection ◽  
Light Emitting ◽  
Organic Light ◽  
Host Structure

Long‐Lived Efficient Inverted Organic Light‐Emitting Diodes Developed by Controlling Carrier Injection Barrier into Emitting Layer

2020 ◽  
Vol 8 (13) ◽  
pp. 2000506 ◽  
Author(s):  
Hirohiko Fukagawa ◽  
Hirokazu Ito ◽  
Shizuka Kawamura ◽  
Yukiko Iwasaki ◽  
Kaito Inagaki ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Carrier Injection ◽  
Light Emitting ◽  
Organic Light ◽  
Injection Barrier

Orange phosphorescent organic light-emitting diodes with high operational stability

2012 ◽  
Vol 13 (9) ◽  
pp. 1506-1510 ◽  
Author(s):  
Enrico Orselli ◽  
Jonathan Maunoury ◽  
Dominique Bascour ◽  
Jean-Pierre Catinat
Keyword(s):  
Light Emitting Diodes ◽  
Operational Stability ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

High-Efficiency Carrier Injection Characteristics of Dixanthene Derivatives in Organic Light-Emitting Diodes

2005 ◽  
Vol 44 (1A) ◽  
pp. 410-411 ◽  
Author(s):  
Masafumi Yoshida ◽  
Teppei Tsuchida ◽  
Takaaki Kurata ◽  
Masaaki Ikeda ◽  
Hiroyuki Sasabe ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Carrier Injection ◽  
Light Emitting ◽  
Organic Light

scholarly journals Light-Emission and Electricity-Generation Properties of Photovoltaic Organic Light-Emitting Diodes with Rubrene/DBP Light-Emission and Electron-Donating Layers

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Mun Soo Choi ◽  
Ho-Nyeon Lee
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Fill Factor ◽  
Light Emitting Diodes ◽  
Light Emission ◽  
Power Conversion ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Emission Efficiency ◽  
Organic Light

We report the dependence of the characteristics of photovoltaic organic light-emitting diodes (PVOLEDs) on the composition of the light-emission and electron-donating layer (EL-EDL). 5,6,11,12-Tetraphenylnaphthacene (rubrene): dibenzo{[f,f′]-4,4′,7,7′-tetraphenyl}diindeno[1,2,3-cd:1′,2′,3′-lm]perylene (DBP) was used to form the EL-EDL, and C60was used as an electron-accepting layer (EAL) material. A half-gap junction was formed at the EAL/EL-EDL interface. As the rubrene ratio in the EL-EDL increased, the emission spectra became blue-shifted and the light-emission efficiency increased. The highest emission efficiency was achieved with an EL-EDL composed of 95% rubrene and 5% DBP. The short-circuit current decreased as the rubrene content increased up to 50% and then saturated, while the open-circuit voltage was almost unchanged regardless of the rubrene content. The power-conversion efficiency and fill factor increased as the composition of the EL-EDL approached that of pure materials. By controlling the rubrene : DBP ratio, the emission color could be adjusted. The emission efficiency of devices with mixed rubrene/DBP EL-EDLs could be greater than that of either pure rubrene or pure DBP devices. We obtained an overall power-conversion efficiency of 3% and a fill factor greater than 50%.

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