Out-Coupling Efficiency Enhancement of Organic Light Emitting Diode Device by SiO2-UV Hardener Composite Layer

2011 ◽  
Vol 11 (2) ◽  
pp. 1766-1769 ◽  
Author(s):  
Hyo Kyun Ham ◽  
Yong Taeg Oh ◽  
Seok Eui Choi ◽  
Jong Woon Park ◽  
Bumho Choi ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Coupling Efficiency ◽  
Composite Layer ◽  
Efficiency Enhancement ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

scholarly journals Study of the Light Coupling Efficiency of OLEDs Using a Nanostructured Glass Substrate

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Min Won Lee ◽  
Siegfried Chicot ◽  
Chii-Chang Chen ◽  
Mahmoud Chakaroun ◽  
Getachew Ayenew ◽  
...  
Keyword(s):  
Glass Substrate ◽  
Light Emitting Diode ◽  
Substrate Surface ◽  
Coupling Efficiency ◽  
Light Extraction ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Light Coupling ◽  
Theoretical Results

We study theoretically the enhancement of the light extraction from an OLED (Organic Light-Emitting Diode) with nanoair-bubbles embedded inside a glass substrate. Due to such a nanostructure inside the substrate, the critical angle which limits the light extraction outside the substrate from the OLED is increased. The theoretical results show that the nanoair bubbles near by the substrate surface can improve the efficiency of the light extraction by 7%. Such a substrate may also be suitable for photovoltaic cells or display screens.

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