Theoretical analysis of enhanced light output from a GaN light emitting diode with an embedded photonic crystal

2010 ◽  
Vol 31 (10) ◽  
pp. 104006
Author(s):  
Wen Feng ◽  
Liu Deming ◽  
Huang Lirong
Keyword(s):  
Photonic Crystal ◽  
Theoretical Analysis ◽  
Light Emitting Diode ◽  
Light Output ◽  
Light Emitting

Enhanced Emission from a Light-Emitting Diode Modified by a Photonic Crystal

2000 ◽  
Vol 637 ◽  
Author(s):  
Alexei A. Erchak ◽  
Daniel J. Ripin ◽  
Shanhui Fan ◽  
John D. Joannopoulos ◽  
Erich P. Ippen ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Planar Waveguide ◽  
Optical Pumping ◽  
Extraction Efficiency ◽  
Light Emitting Diode ◽  
Active Material ◽  
Light Output ◽  
Vertical Direction ◽  
Light Emitting ◽  
Spectrally Resolved

AbstractEnhanced light output is observed from a light-emitting diode (LED) structure containing a two-dimensional (2D) photonic crystal. The capture of emitted light into planar waveguide modes reduces the extraction efficiency of LEDs. Here, 2D photonic crystals are utilized to: 1) enhance the extraction of light in the vertical direction from an LED and 2) enhance optical pumping by directly coupling light from a pump laser into the LED structure. Spatially and spectrally-resolved photoluminescence (PL) is used to characterize the enhancements. A 100-fold enhancement in extraction for a single wavelength into the vertical direction is obtained without the photonic crystal penetrating the active material.

Improved Light Output of Photonic Crystal Light-Emitting Diode Fabricated by Anodized Aluminum Oxide Nano-Patterns

2008 ◽  
Vol 20 (4) ◽  
pp. 321-323 ◽  
Author(s):  
Joonmo Park ◽  
Jin-Kyoung Oh ◽  
Kwang-Woo Kwon ◽  
Young-Ho Kim ◽  
Sung-Soo Jo ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Aluminum Oxide ◽  
Light Emitting Diode ◽  
Light Output ◽  
Anodized Aluminum ◽  
Anodized Aluminum Oxide ◽  
Light Emitting

scholarly journals Reduction of operating voltage in organic light-emitting diode by corrugated photonic crystal structure

2004 ◽  
Vol 85 (23) ◽  
pp. 5769-5771 ◽  
Author(s):  
Masayuki Fujita ◽  
Tetsuya Ueno ◽  
Kuniaki Ishihara ◽  
Takashi Asano ◽  
Susumu Noda ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Photonic Crystal ◽  
Light Emitting Diode ◽  
Photonic Crystal Structure ◽  
Operating Voltage ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

scholarly journals A 3 W High-Voltage Single-Chip Green Light-Emitting Diode with Multiple-Cells Network

2015 ◽  
Vol 2015 ◽  
pp. 1-4 ◽  
Author(s):  
W. Wang ◽  
Y. Cai ◽  
Y. B. Zhang ◽  
H. J. Huang ◽  
W. Huang ◽  
...  
Keyword(s):  
High Voltage ◽  
Light Emitting Diode ◽  
Light Output ◽  
Green Light ◽  
Current Crowding ◽  
Single Chip ◽  
Light Output Power ◽  
Large Area ◽  
Light Emitting ◽  
Multiple Cells

A parallel and series network structure was introduced into the design of the high-voltage single-chip (HV-SC) light-emitting diode to inhibit the effect of current crowding and to improve the yield. Using such a design, a6.6×5 mm2large area LED chip of 24 parallel stages was demonstrated with 3 W light output power (LOP) at the current of 500 mA. The forward voltage was measured to be 83 V with the same current injection, corresponding to 3.5 V for a single stage. The LED chip’s average thermal resistance was identified to be 0.28 K/W by using infrared thermography analysis.

Photonic crystal light emitting diode based on Er and Si nanoclusters co-doped slot waveguide

2014 ◽  
Vol 104 (12) ◽  
pp. 121107 ◽  
Author(s):  
R. Lo Savio ◽  
M. Galli ◽  
M. Liscidini ◽  
L. C. Andreani ◽  
G. Franzò ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Light Emitting Diode ◽  
Slot Waveguide ◽  
Light Emitting ◽  
Co Doped

Analysis of Improved Efficiency of InGaN Light-Emitting Diode With Bottom Photonic Crystal Fabricated by Anodized Aluminum Oxidxe

2009 ◽  
Vol 19 (10) ◽  
pp. 1650-1655 ◽  
Author(s):  
Sang-Wan Ryu ◽  
Joonmo Park ◽  
Jin-Kyoung Oh ◽  
Dang Hoang Long ◽  
Kwang-Woo Kwon ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Light Emitting Diode ◽  
Anodized Aluminum ◽  
Light Emitting
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