An extremely low-index photonic crystal layer for enhanced light extraction from organic light-emitting diodes

Nanoscale ◽  
2016 ◽  
Vol 8 (7) ◽  
pp. 4113-4120 ◽  
Author(s):  
Yong Sub Shim ◽  
Ju Hyun Hwang ◽  
Cheol Hwee Park ◽  
Sun-Gyu Jung ◽  
Young Wook Park ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Extraction ◽  
Crystal Layer ◽  
Light Emitting ◽  
Organic Light

This paper reports organic light-emitting diodes (OLEDs) with improved light extraction fabricated by embedding an extremely low-index photonic crystal (LIPC) layer.

scholarly journals The Effect of Anisotropy on Light Extraction of Organic Light-Emitting Diodes with Photonic Crystal Structure

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Wei Xu ◽  
Yang Li
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Light Emitting Diodes ◽  
Extraction Efficiency ◽  
Organic Light Emitting Diodes ◽  
Light Extraction ◽  
Light Extraction Efficiency ◽  
Light Emitting ◽  
Organic Light ◽  
Triangle Lattice

The light extraction efficiency of organic light-emitting diodes (OLED) is greatly limited due to the difference in refractive indexes between materials of OLED. We fabricated OLED with photonic crystal microstructures in the interface between the glass substrate and the ITO anode. The light extraction efficiency can be improved by utilizing photonic crystals; however, the anisotropy effect of light extraction was clearly observed in experiment. To optimize the device performance, the effect of photonic crystal on both light extraction and angular distribution was investigated using finite-difference time domain (FDTD) method. We simulated the photonic crystals with the structure of square lattice and triangle lattice. We analyzed the improvement of these structures in the light extraction efficiency of the OLED and the influence of arrangement, depth, period, and diameter on anisotropy. The optimized geometric parameters were provided, which will provide the theoretical support for designing the high performance OLED.

Spectral-distortion-free light extraction from organic light-emitting diodes using nanoscale photonic crystal

2016 ◽  
Vol 28 (4) ◽  
pp. 045301 ◽  
Author(s):  
Yong Sub Shim ◽  
Kyu Nyun Kim ◽  
Ju Hyun Hwang ◽  
Cheol Hwee Park ◽  
Sun-Gyu Jung ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Extraction ◽  
Spectral Distortion ◽  
Light Emitting ◽  
Organic Light

Micro-spherically textured organic light emitting diodes: A simple way towards highly increased light extraction

2013 ◽  
Vol 14 (1) ◽  
pp. 396-401 ◽  
Author(s):  
Tobias Bocksrocker ◽  
Jörg Hoffmann ◽  
Carsten Eschenbaum ◽  
Andreas Pargner ◽  
Jan Preinfalk ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Extraction ◽  
Light Emitting ◽  
Organic Light

P.143L:Late-News Poster: Light Extraction in Organic Light Emitting Diodes using SF6/CHF3 Plasma Treated Random Pattern

2013 ◽  
Vol 44 (1) ◽  
pp. 1477-1479
Author(s):  
Ju Hyun Hwang ◽  
Tae Hyun Park ◽  
Hyun Jun Lee ◽  
Kyung Bok Choi ◽  
Young Wook Park ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Extraction ◽  
Random Pattern ◽  
Light Emitting ◽  
Organic Light
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