scholarly journals Analysis of InGaN-delta-InN Quantum Wells on InGaN Substrates for Red Light Emitting Diodes and Lasers

2021 ◽  
pp. 1-1
Author(s):  
Bryan Melanson ◽  
Cheng Liu ◽  
Jing Zhang
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Light Emitting

scholarly journals Investigation of a Separated Short-Wavelength Peak in InGaN Red Light-Emitting Diodes

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1123
Author(s):  
Pavel Kirilenko ◽  
Zhe Zhuang ◽  
Daisuke Iida ◽  
Martin Velazquez-Rizo ◽  
Kazuhiro Ohkawa
Keyword(s):  
Quantum Wells ◽  
Short Wavelength ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Blue Shift ◽  
Light Emitting ◽  
Peak Emission Wavelength ◽  
Wavelength Emission ◽  
Main Emission Peak ◽  
Red Leds

We fabricated indium gallium nitride (InGaN) red light-emitting diodes (LEDs) with a peak emission wavelength of 649 nm and investigated their electroluminescence (EL) properties. An additional separated peak in the EL spectrum of the red LEDs at 20 mA was observed at 465 nm. This additional peak also exhibits a blue-shift with increasing currents as does the main emission peak. Using high-resolution microscopy, we observed many point-like emission spots in the EL emission images at the currents below 1 mA. However, these emission spots cannot be identified at currents above 5 mA because the red emission from quantum wells (QWs) is much stronger than that emitted by these spots. Finally, we demonstrate that these emission spots are related to the defects generated in red QWs. The measured In content was lower at the vicinity of the defects, which was regarded as the reason for separated short-wavelength emission in red InGaN LEDs.

High-Efficiency Red Light-Emitting Diodes Based on Multiple Quantum Wells of Phenylbutylammonium-Cesium Lead Iodide Perovskites

ACS Photonics ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 587-594 ◽  
Author(s):  
Zhuofei He ◽  
Yang Liu ◽  
Zhaoliang Yang ◽  
Jing Li ◽  
Jieyuan Cui ◽  
...  
Keyword(s):  
Quantum Wells ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Lead Iodide ◽  
Light Emitting

scholarly journals Understanding the luminescent nature of organic radicals for efficient doublet emitters and pure-red light-emitting diodes

2020 ◽  
Vol 19 (11) ◽  
pp. 1224-1229 ◽  
Author(s):  
Alim Abdurahman ◽  
Timothy J. H. Hele ◽  
Qinying Gu ◽  
Jiangbin Zhang ◽  
Qiming Peng ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Red Light ◽  
Organic Radicals ◽  
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

Synthesis and Characterization of Thieno[3,4-b]pyrazine Materials for Solution-processible Organic Red Light-emitting Diodes

2011 ◽  
Vol 40 (4) ◽  
pp. 417-419 ◽  
Author(s):  
Qing Li ◽  
Jiuyan Li ◽  
Lijun Deng ◽  
Qian Wang ◽  
Zhanxian Gao ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Red Light ◽  
Synthesis And Characterization ◽  
Light Emitting

(K0.5Na0.5)NbO3:Eu3+/Bi3+: a novel, highly efficient, red light-emitting material with superior water resistance behavior

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4707-4715 ◽  
Author(s):  
Qiwei Zhang ◽  
Haiqin Sun ◽  
Tao Kuang ◽  
Ruiguang Xing ◽  
Xihong Hao
Keyword(s):  
Blue Light ◽  
White Light ◽  
High Performance ◽  
Water Resistance ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Light Emitting ◽  
Highly Efficient ◽  
White Light Emitting Diodes

Materials emitting red light (∼611 nm) under excitation with blue light (440–470 nm) are highly desired for fabricating high-performance white light-emitting diodes (LEDs).

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