Designs of blue and green light-emitting diodes based on type-II InGaN-ZnGeN2 quantum wells

2016 ◽  
Vol 120 (10) ◽  
pp. 103102 ◽  
Author(s):  
Lu Han ◽  
Kathleen Kash ◽  
Hongping Zhao
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Green Light ◽  
Type Ii ◽  
Light Emitting

Control of Barrier Width in Perovskite Multiple Quantum Wells for High Performance Green Light–Emitting Diodes

2018 ◽  
Vol 7 (3) ◽  
pp. 1801575 ◽  
Author(s):  
Maotao Yu ◽  
Chang Yi ◽  
Nana Wang ◽  
Liangdong Zhang ◽  
Renmeng Zou ◽  
...  
Keyword(s):  
Quantum Wells ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Green Light ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Barrier Width ◽  
Light Emitting

Two distinct carrier localization in green light-emitting diodes with InGaN/GaN multiple quantum wells

2014 ◽  
Vol 115 (8) ◽  
pp. 083112 ◽  
Author(s):  
Zhi Li ◽  
Junjie Kang ◽  
Bo Wei Wang ◽  
Hongjian Li ◽  
Yu Hsiang Weng ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Green Light ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Carrier Localization ◽  
Light Emitting

scholarly journals Using Pre-TMIn Treatment to Improve the Optical Properties of Green Light Emitting Diodes

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Bing Xu ◽  
Hai Tao Dai ◽  
Shu Guo Wang ◽  
Fu-Chuan Chu ◽  
Chou-Hsiung Huang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Quantum Wells ◽  
Radiative Decay ◽  
Light Emitting Diodes ◽  
Light Output ◽  
Green Light ◽  
Time Resolved ◽  
Light Emitting ◽  
Transmission Electron ◽  
Green Led

We investigated the effects of pre-TMIn treatment on the optical properties of green light emitting diodes (LEDs). Although pre-TMIn treatment did not affect the epitaxial structure of quantum wells, it significantly improved the quality of the surface morphology relative to that of the untreated sample. Indium cluster can be seen by high-resolution transmission electron microscopy (HR-TEM), which is the explanation for the red-shift of photoluminescence (PL). Time-resolved photoluminescence measurements indicated that the sample prepared with pre-TMIn treatment had a shorter radiative decay time. As a result, the light output power of the treated green LED was higher than that of the conventional untreated one. Thus, pre-TMIn treatment appears to be a simple and efficient means of improving the performance of green LEDs.

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