Partially pyridine-functionalized quantum dots for efficient red, green, and blue light-emitting diodes

2019 ◽  
Vol 7 (12) ◽  
pp. 3429-3435 ◽  
Author(s):  
Sukyung Choi ◽  
Jaehyun Moon ◽  
Hyunsu Cho ◽  
Byoung-Hwa Kwon ◽  
Nam Sung Cho ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
High Brightness ◽  
Light Emitting ◽  
Turn On ◽  
Colloidal Quantum Dot

Surface-exchanged, partially pyridine-functionalized colloidal quantum dot-based light-emitting diodes (QD-LEDs) exhibit a low turn-on voltage and high brightness.

Efficient and Bright Colloidal Quantum Dot Light-Emitting Diodes via Controlling the Shell Thickness of Quantum Dots

2013 ◽  
Vol 5 (22) ◽  
pp. 12011-12016 ◽  
Author(s):  
Huaibin Shen ◽  
Qinli Lin ◽  
Hongzhe Wang ◽  
Lei Qian ◽  
Yixing Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Shell Thickness ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Colloidal Quantum Dot

Colloidal quantum dot ligand engineering for high performance solar cells

2016 ◽  
Vol 9 (4) ◽  
pp. 1130-1143 ◽  
Author(s):  
Ruili Wang ◽  
Yuequn Shang ◽  
Pongsakorn Kanjanaboos ◽  
Wenjia Zhou ◽  
Zhijun Ning ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Optoelectronic Devices ◽  
Colloidal Quantum Dots ◽  
Solution Processed ◽  
Light Emitting ◽  
Colloidal Quantum Dot

Colloidal quantum dots (CQDs) are fast-improving materials for next-generation solution-processed optoelectronic devices such as solar cells, photocatalysis, light emitting diodes, and photodetectors.

Degradation Studies of Colloidal Quantum Dot Light-Emitting Diodes

2011 ◽  
Vol 1286 ◽  
Author(s):  
Jie Liu ◽  
Chuang Xie ◽  
Yu Zhang ◽  
Wenjia Hu ◽  
Shawn Pickering ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Steady State ◽  
Quantum Dot ◽  
Thermal Instability ◽  
Light Emitting Diodes ◽  
Degradation Mechanism ◽  
Time Resolved ◽  
Light Emitting ◽  
Colloidal Quantum Dot ◽  
Time Resolved Photoluminescence

ABSTRACTThe degradation mechanism of CdSe/ZnS quantum dots (QDs) light-emitting diodes (LEDs) was investigated with steady-state and time-resolved photoluminescence measurements. Our study reveals that the degradation is associated with the decreasing quantum efficiency of the CdSe/ZnS QDs in the devices. Two mechanisms that cause the efficiency reduction were verified in the experiments: i.e., thermal instability and luminescence quenching.

Synthesis of highly fluorescent InP/ZnS small-core/thick-shell tetrahedral-shaped quantum dots for blue light-emitting diodes

2017 ◽  
Vol 5 (32) ◽  
pp. 8243-8249 ◽  
Author(s):  
Wei Shen ◽  
Haiyan Tang ◽  
Xiaolei Yang ◽  
Zengle Cao ◽  
Tai Cheng ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Quantum Dots ◽  
Quantum Dot ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Thick Shell ◽  
Light Emitting ◽  
Metal Free ◽  
Small Core

Highly fluorescent InP/ZnS small-core/thick-shell quantum dots were synthesized for constructing heavy-metal-free blue quantum dot-light-emitting diodes.

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

Waveguide‐Coupled Colloidal Quantum Dot Light Emitting Diodes and Detectors on a Silicon Nitride Platform

2021 ◽  
pp. 2000230
Author(s):  
Lukas Elsinger ◽  
Robin Petit ◽  
Frederik Van Acker ◽  
Natalia K. Zawacka ◽  
Ivo Tanghe ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Colloidal Quantum Dot

scholarly journals Device Modeling of Quantum Dot–Organic Light Emitting Diodes for High Green Color Purity

2021 ◽  
Vol 11 (6) ◽  
pp. 2828
Author(s):  
Byoung-Seong Jeong
Keyword(s):  
Quantum Dot ◽  
Emission Spectrum ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Color Purity ◽  
Wavelength Band ◽  
Light Emitting ◽  
Green Color ◽  
Organic Light

In this study, the optimal structure for obtaining high green color purity was investigated by modeling quantum dot (QD)–organic light-emitting diodes (OLED). It was found that even if the green quantum dot (G-QD) density in the G-QD layer was 30%, the full width at half maximum (FWHM) in the green wavelength band could be minimized to achieve a sharp emission spectrum, but it was difficult to completely block the blue light leakage with the G-QD layer alone. This blue light leakage problem was solved by stacking a green color filter (G-CF) layer on top of the G-QD layer. When G-CF thickness 5 μm was stacked, blue light leakage was blocked completely, and the FWHM of the emission spectrum in the green wavelength band was minimized, resulting in high green color purity. It is expected that the overall color gamut of QD-OLED can be improved by optimizing the device that shows such excellent green color purity.

Sign in / Sign up

Export Citation Format

Share Document