Enhanced Light Out-Coupling Efficiency of Organic Light-Emitting Diodes with Self-Organized Microlens Arrays

2006 ◽  
Vol 45 (No. 41) ◽  
pp. L1100-L1102 ◽  
Author(s):  
Wen-Kuei Huang ◽  
Wen-Sheng Wang ◽  
Hui-Chun Kan ◽  
Fang-Chung Chen
Keyword(s):  
Light Emitting Diodes ◽  
Coupling Efficiency ◽  
Organic Light Emitting Diodes ◽  
Microlens Arrays ◽  
Light Emitting ◽  
Self Organized ◽  
Organic Light

scholarly journals Polymeric tandem organic light-emitting diodes using a self-organized interfacial layer

2008 ◽  
Vol 92 (10) ◽  
pp. 103301 ◽  
Author(s):  
Seung Yoon Ryu ◽  
Jong Tae Kim ◽  
Joo Hyon Noh ◽  
Byoung Har Hwang ◽  
Chang Su Kim ◽  
...  
Keyword(s):  
Interfacial Layer ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Self Organized ◽  
Organic Light

Polymer grating imbedded organic light emitting diodes with improved out-coupling efficiency

2010 ◽  
Vol 97 (12) ◽  
pp. 123302 ◽  
Author(s):  
Ji-Hyang Jang ◽  
Min-Cheol Oh ◽  
Tae-Hoon Yoon ◽  
Jae Chang Kim
Keyword(s):  
Light Emitting Diodes ◽  
Coupling Efficiency ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Polymer Grating

Out-Coupling Efficiency Improvement in Organic Light-Emitting Diodes with Inverted Pyramid Glass Substrates

2013 ◽  
Vol 815 ◽  
pp. 142-147
Author(s):  
Rong Yan ◽  
Jun Wang ◽  
Wei Zhi Li ◽  
Chong Wang
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Structural Parameters ◽  
Coupling Efficiency ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Inverted Pyramid ◽  
Substrate Structure ◽  
Organic Light

The external quantum efficiency of organic light-emitting diodes (OLEDs) was suppressed by the wave guide mode in the glass substrate and organic layers. In this paper, a mechanism is developed to simulate the optical luminous field for OLEDs based on inverted pyramid substrate structure. Monte Carlo method was used to optimize the structural parameters to enhance the external quantum efficiency of device by changing the substrate structure. A considerable enhancement in the extraction efficiency of the OLED is expected theoretically, and near 42% out-coupling efficiency was achieved in experiment without affecting the electroluminescent spectrum.

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