scholarly journals Highly efficient light extraction and directional emission from large refractive-index materials with a planar Yagi-Uda antenna

2017 ◽  
Vol 7 (5) ◽  
pp. 1634 ◽  
Author(s):  
Hossam Galal ◽  
Mario Agio
Keyword(s):  
Refractive Index ◽  
Light Extraction ◽  
Highly Efficient ◽  
Directional Emission

P-127: Highly Efficient Light Extraction Technologies Applicable for Transparent OLED Lighting using a Corrugated Substrate

2015 ◽  
Vol 46 (1) ◽  
pp. 1643-1646 ◽  
Author(s):  
Satoshi Masuyama ◽  
Takashi Seki ◽  
Shigetaka Toriyama ◽  
Suzushi Nishimura
Keyword(s):  
Light Extraction ◽  
Highly Efficient

Enhanced light-extraction from a GaN waveguide using micro-pillar TiO2 SiO2 graded-refractive-index layers

2012 ◽  
Vol 209 (11) ◽  
pp. 2277-2280 ◽  
Author(s):  
Frank W. Mont ◽  
Arthur J. Fischer ◽  
Ahmed N. Noemaun ◽  
David J. Poxson ◽  
Jaehee Cho ◽  
...  
Keyword(s):  
Refractive Index ◽  
Light Extraction

scholarly journals Directional emission control and increased light extraction in GaN photonic crystal light emitting diodes

2008 ◽  
Vol 93 (10) ◽  
pp. 103502 ◽  
Author(s):  
K. McGroddy ◽  
A. David ◽  
E. Matioli ◽  
M. Iza ◽  
S. Nakamura ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Light Emitting Diodes ◽  
Emission Control ◽  
Light Extraction ◽  
Light Emitting ◽  
Directional Emission

Enhanced light extraction of Bi3Ge4O12 scintillator by graded-refractive-index antireflection coatings

2013 ◽  
Vol 103 (7) ◽  
pp. 071907 ◽  
Author(s):  
Fei Tong ◽  
Bo Liu ◽  
Hong Chen ◽  
Zhichao Zhu ◽  
Mu Gu
Keyword(s):  
Refractive Index ◽  
Light Extraction ◽  
Antireflection Coatings

Light-extraction enhancement and directional emission control of GaN-based LED with transmission grating

Optik ◽  
2014 ◽  
Vol 125 (14) ◽  
pp. 3623-3627 ◽  
Author(s):  
Suihu Dang ◽  
Chunxia Li ◽  
Tianbao Li ◽  
Wei Jia ◽  
Peide Han ◽  
...  
Keyword(s):  
Emission Control ◽  
Light Extraction ◽  
Transmission Grating ◽  
Directional Emission

Microporous titanate nanofibers for highly efficient UV-protective transparent coating

2014 ◽  
Vol 2 (39) ◽  
pp. 16381-16388 ◽  
Author(s):  
H. Hattori ◽  
Y. Ide ◽  
T. Sano
Keyword(s):  
Refractive Index ◽  
Photocatalytic Activity ◽  
Polymer Coatings ◽  
Organic Polymer ◽  
Uv Absorber ◽  
Highly Efficient ◽  
Layered Titanate ◽  
Transparent Coating ◽  
Low Refractive Index

Interzeolite conversion was applied to convert a layered titanate into a microporous titanate nanofiber, which hardly showed photocatalytic activity and exhibited extremely low refractive index and then could be used as a UV absorber embedded in commodity organic polymer coatings.

Effect of Glass Refractive Index on Light Extraction Efficiency of Light-Emitting Diodes

2014 ◽  
Vol 97 (9) ◽  
pp. 2789-2793 ◽  
Author(s):  
Jiyoung Seo ◽  
Sunil Kim ◽  
Yurian Kim ◽  
Fauzia lqbal ◽  
Hyungsun Kim
Keyword(s):  
Refractive Index ◽  
Light Emitting Diodes ◽  
Extraction Efficiency ◽  
Light Extraction ◽  
Light Extraction Efficiency ◽  
Light Emitting

scholarly journals Enhanced Light Extraction from Bottom Emission OLEDs by High Refractive Index Nanoparticle Scattering Layer

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1241 ◽  
Author(s):  
Park ◽  
Choi
Keyword(s):  
Refractive Index ◽  
Glass Substrate ◽  
Manufacturing Process ◽  
Color Change ◽  
Light Emitting Diode ◽  
High Refractive Index ◽  
Light Extraction ◽  
Scattering Layer ◽  
Oled Device ◽  
Nanoparticle Material

High refractive index nanoparticle material was applied as a scattering layer on the inner side of a glass substrate of a bottom emission organic light emitting diode (OLED) device to enhance light extraction and to improve angular color shift. TiO2 and YSZ (Yttria Stabilized Zirconia; Y2O3-ZrO2) were examined as the high refractive index nanoparticles. The nanoparticle material was formed as a scattering layer on a glass substrate by a coating method, which is generally used in the commercial display manufacturing process. Additionally, a planarization layer was coated on the scattering layer with the same method. The implemented nanoparticle material and planarization material endured, without deformation, the subsequent thermal annealing process, which was carried out at temperature ranged to 580 °C. We demonstrated a practical and highly efficient OLED device using the conventional display manufacturing process by implementing the YSZ nanoparticle. We obtained a 38% enhanced luminance of the OLED device and a decreased angular color change compared to a conventional OLED device.

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