Efficient InGaN-based yellow-light-emitting diodes

2019 ◽  
Vol 7 (2) ◽  
pp. 144 ◽  
Author(s):  
Fengyi Jiang ◽  
Jianli Zhang ◽  
Longquan Xu ◽  
Jie Ding ◽  
Guangxu Wang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Yellow Light ◽  
Light Emitting

Rational construction of staggered InGaN quantum wells for efficient yellow light-emitting diodes

2021 ◽  
Vol 118 (18) ◽  
pp. 182102
Author(s):  
Xiaoyu Zhao ◽  
Bin Tang ◽  
Liyan Gong ◽  
Junchun Bai ◽  
Jiafeng Ping ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Yellow Light ◽  
Light Emitting ◽  
Rational Construction ◽  
Ingan Quantum Wells

Fabrication and optical modulation of top-emitting yellow light polymer light-emitting diodes on the FR4 board

2010 ◽  
Vol 519 (2) ◽  
pp. 841-845 ◽  
Author(s):  
Haichuan Mu ◽  
Indrani Reddy ◽  
John Hunt ◽  
Phillip Severs ◽  
Shirish Patil
Keyword(s):  
Light Emitting Diodes ◽  
Optical Modulation ◽  
Yellow Light ◽  
Light Emitting ◽  
Polymer Light Emitting Diodes

Efficient single layer yellow light emitting diodes made of a blend of a ladder-type poly(p-phenylene) and polyalkylthiophene

1999 ◽  
Vol 12 (2-3) ◽  
pp. 311-314 ◽  
Author(s):  
E.J.W List ◽  
L Holzer ◽  
S Tasch ◽  
G Leising ◽  
M Catellani ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Single Layer ◽  
Yellow Light ◽  
Light Emitting

Improved Yellow Light Emission in the Achievement of Dichromatic White Light Emitting Diodes

2013 ◽  
Vol 1538 ◽  
pp. 371-375
Author(s):  
Zhao Si ◽  
Tongbo Wei ◽  
Jun Ma ◽  
Ning Zhang ◽  
Zhe Liu ◽  
...  
Keyword(s):  
Blue Light ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emission ◽  
Dual Wavelength ◽  
Emission Wavelength ◽  
White Led ◽  
Yellow Light ◽  
Light Emitting ◽  
White Light Emitting Diodes

ABSTRACTA study about the achievement of dichromatic white light-emitting diodes (LEDs) was performed. A series of dual wavelength LEDs with different last quantum-well (LQW) structure were fabricated. The bottom seven blue light QWs (close to n-GaN layer) of the four samples were the same. The LQW of sample A was 3 nm, and that of sample B, C and D were 6 nm, a special high In content ultra-thin layer was inserted in the middle of the LQW of sample C and on top of that of sample D. XRD results showed In concentration fluctuation and good interface quality of the four samples. PL measurements showed dual wavelength emitting, the blue light peak position of the four samples were almost the same, sample A with a narrower LQW showed an emission wavelength much shorter than that of sample B, C, D. EL measurement was done at an injection current of 100 mA. Sample A only showed LQW emission due to holes distribution. Because of wider LQW, the emission wavelength of sample B, C and D was longer and peak intensity was weaker. Sample D with insert layer on top of LQW showed strongest yellow light emission with a blue peak. As the injection current increased, sample A showed highest output light power due to narrower LQW. Of the other three samples with wider LQW, sample D showed highest output power. Effective yellow light emission has always been an obstacle to the achievement of dichromatic white LED. Sample D with insert layer close to p-GaN can confine the hole distribution more effectively hence the recombination of holes and electrons was enhanced, the yellow light emission was improved and dichromatic white LED was achieved.

High-efficiency green-yellow light-emitting diodes grown on sapphire (0001) substrates

2013 ◽  
Vol 10 (11) ◽  
pp. 1529-1532 ◽  
Author(s):  
Rei Hashimoto ◽  
Jongil Hwang ◽  
Shinji Saito ◽  
Shinya Nunoue
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Yellow Light ◽  
Light Emitting

Aging characteristics of II–VI yellow light emitting diodes with beryllium chalcogenide (BeZnSeTe) active layers on InP substrates

2004 ◽  
Vol 201 (12) ◽  
pp. 2708-2711 ◽  
Author(s):  
Yuki Nakai ◽  
Ichirou Nomura ◽  
Yasushi Takashima ◽  
Akihiko Kikuchi ◽  
Katsumi Kishino
Keyword(s):  
Light Emitting Diodes ◽  
Yellow Light ◽  
Light Emitting ◽  
Active Layers ◽  
Inp Substrates
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