scholarly journals Optical properties of plasmonic light-emitting diodes based on flip-chip III-nitride core-shell nanowires

2014 ◽  
Vol 22 (24) ◽  
pp. 29445 ◽  
Author(s):  
Mohsen Nami ◽  
Daniel F. Feezell
Keyword(s):  
Optical Properties ◽  
Flip Chip ◽  
Light Emitting Diodes ◽  
Core Shell ◽  
Light Emitting ◽  
Shell Nanowires

scholarly journals Quantum Dots and Applications

Materials ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 897
Author(s):  
Chang-Yeol Han ◽  
Hyun-Sik Kim ◽  
Heesun Yang
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Band Gap ◽  
Light Emitting Diodes ◽  
Photovoltaic Cells ◽  
Core Shell ◽  
Special Issue ◽  
High Quality ◽  
Light Emitting ◽  
Size Dependent

It is the unique size-dependent band gap of quantum dots (QDs) that makes them so special in various applications. They have attracted great interest, especially in optoelectronic fields such as light emitting diodes and photovoltaic cells, because their photoluminescent characteristics can be significantly improved via optimization of the processes by which they are synthesized. Control of their core/shell heterostructures is especially important and advantageous. However, a few challenges remain to be overcome before QD-based devices can completely replace current optoelectronic technology. This Special Issue provides detailed guides for synthesis of high-quality QDs and their applications. In terms of fabricating devices, tailoring optical properties of QDs and engineering defects in QD-related interfaces for higher performance remain important issues to be addressed.

Density effect of Ag/SiO2 core–shell nanoparticles on optical properties of InGaN/GaN light-emitting diodes

2018 ◽  
Vol 57 (01) ◽  
pp. 1
Author(s):  
Seul-Ki Moon ◽  
Soon-Yong Kwon ◽  
Jin-Hyeon Yun ◽  
In-Hwan Lee ◽  
Jin-Kyu Yang
Keyword(s):  
Optical Properties ◽  
Light Emitting Diodes ◽  
Density Effect ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Light Emitting ◽  
Core Shell Nanoparticles

scholarly journals Phosphine-Free-Synthesized ZnSe/ZnS Core/Shell Quantum Dots for White Light-Emitting Diodes

2021 ◽  
Vol 11 (21) ◽  
pp. 10060
Author(s):  
Nyamsuren Byambasuren ◽  
Jiyeon Jo ◽  
Hyungduk Ko ◽  
Byeong-Kwon Ju ◽  
Ji Young Byun ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Blue Light ◽  
White Light ◽  
Light Emitting Diodes ◽  
Core Shell ◽  
Light Emitting ◽  
White Leds ◽  
Deep Blue ◽  
Near Ultraviolet

Blue-light-emitting ZnSe core (C) and ZnSe/ZnS core/shell (C/S) quantum dots (QDs) were synthesized with phosphine-free precursors by a thermal decomposition method in paraffin oil solvent and applied to QD-converted light-emitting diodes (LEDs). The optical properties of the synthesized ZnSe C and ZnSe/ZnS C/S QDs were characterized by absorption spectroscopy and photoluminescence spectroscopy. Additionally, the quantum efficiency of the QDs was investigated. Their structural properties were studied with X-ray crystallography and transmission electron microscopy. The ZnSe/ZnS C/S QDs showed deep-blue light peaking at 425 nm. The blue-light-emitting ZnSe/ZnS C/S QDs were used as color-converting materials for near-ultraviolet LED-pumped blue LEDs and combined with yellow-light-emitting Zn-Cu-In-S/ZnS C/S QDs to fabricate white LEDs. The white LEDs showed warm white light [(CIE x, CIE y) = (0.4088, 0.3987)], Tc = 3488 K, and Ra = 61.2]. The results indicate that the ZnSe/ZnS C/S QDs have good potential for white light application after further improvements to their optical properties.

Direct correlations of structural and optical properties of three-dimensional GaN/InGaN core/shell micro-light emitting diodes

2016 ◽  
Vol 55 (5S) ◽  
pp. 05FJ09 ◽  
Author(s):  
Matin Sadat Mohajerani ◽  
Marcus Müller ◽  
Jana Hartmann ◽  
Hao Zhou ◽  
Hergo-H. Wehmann ◽  
...  
Keyword(s):  
Optical Properties ◽  
Light Emitting Diodes ◽  
Three Dimensional ◽  
Core Shell ◽  
Structural And Optical Properties ◽  
Light Emitting

Semi-transparent all-oxide ultraviolet light-emitting diodes based on ZnO/NiO-core/shell nanowires

Nanoscale ◽  
2016 ◽  
Vol 8 (19) ◽  
pp. 9997-10003 ◽  
Author(s):  
Zhi-Feng Shi ◽  
Ting-Ting Xu ◽  
Di Wu ◽  
Yuan-Tao Zhang ◽  
Bao-Lin Zhang ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Light Emitting Diodes ◽  
Core Shell ◽  
Light Emitting ◽  
Ultraviolet Light Emitting Diodes ◽  
Shell Nanowires

Surface Organic Ligands-Passivated Quantum Dots: Toward High-Performance Light-Emitting Diodes with Long Lifetime

2021 ◽  
Author(s):  
Lishuang Wang ◽  
Ying Lv ◽  
Jie Lin ◽  
Jialong Zhao ◽  
Xingyuan Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Ligands ◽  
Colloidal Quantum Dots ◽  
Core Shell ◽  
Light Emitting ◽  
Long Lifetime

For quantum dots light-emitting diodes (QLEDs), typical colloidal quantum dots (QDs) are usually composed of a core/shell heterostructure which is covered with organic ligands as surface passivated materials to confine...

scholarly journals Graphene-Based Transparent Conducting Substrates for GaN/AlGaN Nanocolumn Flip-Chip Ultraviolet Light-Emitting Diodes

2021 ◽  
Author(s):  
Andreas Liudi Mulyo ◽  
Anjan Mukherjee ◽  
Ida Marie Høiaas ◽  
Lyubomir Ahtapodov ◽  
Tron Arne Nilsen ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Flip Chip ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Transparent Conducting ◽  
Ultraviolet Light Emitting Diodes
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