scholarly journals An enhanced surface passivation effect in InGaN/GaN disk-in-nanowire light emitting diodes for mitigating Shockley–Read–Hall recombination

Nanoscale ◽  
2015 ◽  
Vol 7 (40) ◽  
pp. 16658-16665 ◽  
Author(s):  
Chao Zhao ◽  
Tien Khee Ng ◽  
Aditya Prabaswara ◽  
Michele Conroy ◽  
Shafat Jahangir ◽  
...  
Keyword(s):  
Radiative Recombination ◽  
Light Emitting Diodes ◽  
Surface Passivation ◽  
Light Emitting ◽  
Passivation Process ◽  
Enhanced Surface

An organic passivation process for nitride nanowires was first proposed to reduce Shockley–Read–Hall non-radiative recombination of nanowire light emitting diodes.

Impact of Anchoring Monolayers on the Enhancement of Radiative Recombination in Light-Emitting Diodes Based on Silicon Nanocrystals

2018 ◽  
Vol 122 (11) ◽  
pp. 6422-6430 ◽  
Author(s):  
Batu Ghosh ◽  
Takumi Hamaoka ◽  
Yoshihiro Nemoto ◽  
Masaki Takeguchi ◽  
Naoto Shirahata
Keyword(s):  
Silicon Nanocrystals ◽  
Radiative Recombination ◽  
Light Emitting Diodes ◽  
Light Emitting

Suppression of Halide Migration and Immobile Ionic Surface Passivation for Blue Perovskite Light-Emitting Diodes

2022 ◽  
Author(s):  
Chan Beom Park ◽  
Yun Seop Shin ◽  
Yung Jin Yoon ◽  
Hyungsu Jang ◽  
Jung Geon Son ◽  
...  
Keyword(s):  
Optical Properties ◽  
Light Emitting Diodes ◽  
Surface Passivation ◽  
Optoelectronic Properties ◽  
Light Emitting ◽  
Perovskite Nanocrystals

Cs-based perovskite nanocrystals (PeNCs) have been considered to be superb emitters for perovskite light-emitting diodes (PeLEDs) due to their remarkable optoelectronic properties. Still, poor optical properties are mainly attributed to...

Strategy toward the fabrication of ultrahigh-resolution micro-LED displays by bonding-interface-engineered vertical stacking and surface passivation

Nanoscale ◽  
2019 ◽  
Vol 11 (48) ◽  
pp. 23139-23148 ◽  
Author(s):  
Dae-Myeong Geum ◽  
Seong Kwang Kim ◽  
Chang-Mo Kang ◽  
Seung-Hyun Moon ◽  
Jihoon Kyhm ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Surface Passivation ◽  
Bonding Interface ◽  
Ultrahigh Resolution ◽  
Light Emitting

In this study, we proposed a strategy to fabricate vertically stacked subpixel (VSS) micro-light-emitting diodes (μ-LEDs) for future ultrahigh-resolution microdisplays.

scholarly journals Highly compact CsPbBr3 perovskite film decorated by PEO for light-emitting diodes

2018 ◽  
Vol 53 ◽  
pp. 01035
Author(s):  
Shulv Zhang ◽  
Yuhang Yin ◽  
Weiling Luan ◽  
Mengke Liu
Keyword(s):  
Surface Roughness ◽  
Quantum Yield ◽  
Polyethylene Oxide ◽  
Radiative Recombination ◽  
Light Emitting Diodes ◽  
Protective Layer ◽  
Precursor Solution ◽  
Light Emitting ◽  
Photoluminescence Quantum Yield ◽  
Crystal Boundaries

Inorganic perovskite light-emitting diodes (PeLEDs) with full coverage and compact films were realized by doping a certain amount of PEO into perovskite emitting layer. The additive PEO (Polyethylene oxide) can not only improve the coverage of films by physically filling the pin-holes of crystal boundaries but also act as a protective layer to passivate the films, which successfully reduce the rate of non-radiative recombination, and enhance photoluminescence quantum yield (PLQY) of the CsPbBr3 films. In addition, PEO can also decrease the surface roughness of the perovskite films. As a result, the addition of PEO can improve the transport capability of carriers in PeLEDs. By optimizing the concentration of PEO, a maximum external quantum efficiency (EQE) of 0.26% and brightness of 1432 cd/m2 were achieved, which is significantly improved compared with previous work. The results presented in this paper shows that the additive PEO in perovskite precursor solution paves a new way for the application in PeLEDs.

High-Performance Perovskite Light-Emitting Diodes with Surface Passivation of CsPbBrxI3–x Nanocrystals via Antisolvent-Triggered Ion-Exchange

2020 ◽  
Vol 12 (28) ◽  
pp. 31582-31590 ◽  
Author(s):  
Yun Seop Shin ◽  
Yung Jin Yoon ◽  
Kang Taek Lee ◽  
Woojin Lee ◽  
Hyeon Seo Kim ◽  
...  
Keyword(s):  
Ion Exchange ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Surface Passivation ◽  
Light Emitting
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