High‐efficiency quantum dot light‐emitting diodes with blue cadmium‐free quantum dots

2020 ◽  
Vol 28 (5) ◽  
pp. 401-409 ◽  
Author(s):  
Tatsuya Ryowa ◽  
Takeshi Ishida ◽  
Yusuke Sakakibara ◽  
Keisuke Kitano ◽  
Masaya Ueda ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting

All-solution processed inverted green quantum dot light-emitting diodes with concurrent high efficiency and long lifetime

2019 ◽  
Vol 6 (10) ◽  
pp. 2009-2015 ◽  
Author(s):  
Zhiwen Yang ◽  
Qianqian Wu ◽  
Gongli Lin ◽  
Xiaochuan Zhou ◽  
Weijie Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Shell Growth ◽  
Solution Processed ◽  
Light Emitting ◽  
Long Lifetime

An all-solution processed inverted green quantum dot-based light-emitting diode with concurrent high efficiency and long lifetime is obtained by precisely controlled double shell growth of quantum dots.

High-efficiency quantum dots light-emitting diodes based on Li-doped TiO2 nanoparticles as an alternative electron transport layer

Nanoscale ◽  
2021 ◽  
Author(s):  
Moonbon Kim ◽  
Nayeon Lee ◽  
JoongHwan Yang ◽  
Chang Wook Han ◽  
Hyun-Min Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Transport ◽  
Quantum Dot ◽  
Tio2 Nanoparticles ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Light Emitting ◽  
Doped Tio2

We report high-efficiency quantum dot light-emitting diodes (QLEDs) with Li-doped TiO2 nanoparticles (NPs) as an alternative electron transport layer (ETL). Colloidally stable TiO2 NPs are applied as ETLs of the...

scholarly journals High efficiency green InP quantum dot light-emitting diodes by balancing electron and hole mobility

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Wei-Chih Chao ◽  
Tzu-Hsuan Chiang ◽  
Yi-Chun Liu ◽  
Zhi-Xuan Huang ◽  
Chia-Chun Liao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Hole Mobility ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Light Emitting ◽  
A Current

AbstractThe industrialization of quantum dot light-emitting diodes (QLEDs) requires the use of less hazardous cadmium-free quantum dots, among which ZnSe-based blue and InP-based green and red quantum dots have received considerable attention. In comparison, the development of InP-based green QLEDs is lagging behind. Here, we prepare green InP/ZnSe/ZnS quantum dots with a diameter of 8.6 nm. We then modify the InP quantum dot emitting layer by passivation with various alkyl diamines and zinc halides, which decreases electron mobility and enhances hole transport. This, together with optimizing the electron transport layer, leads to green 545 nm InP QLEDs with a maximum quantum efficiency (EQE) of 16.3% and a current efficiency 57.5 cd/A. EQE approaches the theoretical limit of InP quantum dots, with an emission quantum yield of 86%.

High-efficiency deep-red quantum-dot light-emitting diodes with type-II CdSe/CdTe core/shell quantum dots as emissive layers

2016 ◽  
Vol 4 (30) ◽  
pp. 7223-7229 ◽  
Author(s):  
Qingli Lin ◽  
Bin Song ◽  
Hongzhe Wang ◽  
Fengjuan Zhang ◽  
Fei Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Core Shell ◽  
Cdse Quantum Dots ◽  
Type Ii ◽  
Light Emitting ◽  
Cdte Core

Highly efficient deep-red light-emitting diodes (LEDs) fabricated by using type-II CdTe/CdSe quantum dots.

65‐3: Quantum Dot Light‐emitting Diodes with High Color Purity RGB Cadmium‐Free Quantum Dots

2021 ◽  
Vol 52 (1) ◽  
pp. 953-956
Author(s):  
Tatsuya Ryowa ◽  
Yusuke Sakakibara ◽  
Tadashi Kobashi ◽  
Keisuke Kitano ◽  
Masaya Ueda ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Color Purity ◽  
Light Emitting ◽  
High Color Purity

Analysis of Various Solvent Effects to Quantum Dots for Bilayer Quantum Dot Light-Emitting Diodes

2020 ◽  
pp. 425
Author(s):  
JaeIn Yoo ◽  
Suk-Ho Song ◽  
Jae-Peel Jung ◽  
Zhang Yi ◽  
Sung-Jae Park ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Solvent Effects ◽  
Light Emitting Diodes ◽  
Light Emitting

High efficiency quantum dot light emitting diodes from positive aging

Nanoscale ◽  
2017 ◽  
Vol 9 (38) ◽  
pp. 14451-14457 ◽  
Author(s):  
Krishna P. Acharya ◽  
Alexandre Titov ◽  
Jake Hyvonen ◽  
Chenggong Wang ◽  
Jean Tokarz ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Positive Aging ◽  
Polymer Hybrid ◽  
Colloidal Quantum Dot

Colloidal quantum dot-polymer hybrid light emitting diodes (QLEDs) that exhibit external quantum efficiencies >12% for all three primary colors (21% from green) have been demonstrated.

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