Colloidal quantum-dot light-emitting diodes with metal-oxide charge transport layers

2008 ◽  
Vol 2 (4) ◽  
pp. 247-250 ◽  
Author(s):  
J. M. Caruge ◽  
J. E. Halpert ◽  
V. Wood ◽  
V. Bulović ◽  
M. G. Bawendi
Keyword(s):  
Quantum Dot ◽  
Metal Oxide ◽  
Charge Transport ◽  
Light Emitting Diodes ◽  
Oxide Charge ◽  
Light Emitting ◽  
Colloidal Quantum Dot

Selection of Metal Oxide Charge Transport Layers for Colloidal Quantum Dot LEDs

ACS Nano ◽  
2009 ◽  
Vol 3 (11) ◽  
pp. 3581-3586 ◽  
Author(s):  
V. Wood ◽  
M. J. Panzer ◽  
J. E. Halpert ◽  
J.-M. Caruge ◽  
M. G. Bawendi ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Metal Oxide ◽  
Charge Transport ◽  
Oxide Charge ◽  
Colloidal Quantum Dot ◽  
Selection Of

scholarly journals Double Metal Oxide Electron Transport Layers for Colloidal Quantum Dot Light-Emitting Diodes

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 726
Author(s):  
Myeongjin Park ◽  
Jeongkyun Roh ◽  
Jaehoon Lim ◽  
Hyunkoo Lee ◽  
Donggu Lee
Keyword(s):  
Electron Transport ◽  
Quantum Dot ◽  
Metal Oxide ◽  
Light Emitting Diodes ◽  
Metal Oxide Semiconductors ◽  
Electron Transport Layer ◽  
Oxide Semiconductors ◽  
Light Emitting ◽  
Luminescence Efficiency ◽  
Colloidal Quantum Dot

The performance of colloidal quantum dot light-emitting diodes (QD-LEDs) have been rapidly improved since metal oxide semiconductors were adopted for an electron transport layer (ETL). Among metal oxide semiconductors, zinc oxide (ZnO) has been the most generally employed for the ETL because of its excellent electron transport and injection properties. However, the ZnO ETL often yields charge imbalance in QD-LEDs, which results in undesirable device performance. Here, to address this issue, we introduce double metal oxide ETLs comprising ZnO and tin dioxide (SnO2) bilayer stacks. The employment of SnO2 for the second ETL significantly improves charge balance in the QD-LEDs by preventing spontaneous electron injection from the ZnO ETL and, as a result, we demonstrate 1.6 times higher luminescence efficiency in the QD-LEDs. This result suggests that the proposed double metal oxide ETLs can be a versatile platform for QD-based optoelectronic devices.

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

Remarkable lifetime improvement of quantum-dot light emitting diodes by incorporating rubidium carbonate in metal-oxide electron transport layers

2019 ◽  
Vol 7 (32) ◽  
pp. 10082-10091 ◽  
Author(s):  
Yujin Lee ◽  
Hyo-Min Kim ◽  
Jeonggi Kim ◽  
Jin Jang
Keyword(s):  
Electron Transport ◽  
Quantum Dot ◽  
Metal Oxide ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Remarkable Improvement ◽  
Operational Lifetime ◽  
Electron Transporting Layer ◽  
Doped Zno ◽  
Mg Doped

We demonstrated the remarkable improvement of efficiency roll-off and operational lifetime in red quantum dot light emitting diodes (R-QLEDs) by incorporating rubidium carbonate (Rb2CO3) in Mg doped ZnO (MZO) electron transporting layer (ETL).

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.

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

Bright colloidal quantum dot light-emitting diodes enabled by efficient chlorination

2018 ◽  
Vol 12 (3) ◽  
pp. 159-164 ◽  
Author(s):  
Xiyan Li ◽  
Yong-Biao Zhao ◽  
Fengjia Fan ◽  
Larissa Levina ◽  
Min Liu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Colloidal Quantum Dot
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