scholarly journals Colloidal quantum dot hybrids: an emerging class of materials for ambient lighting

2020 ◽  
Vol 8 (31) ◽  
pp. 10676-10695 ◽  
Author(s):  
Benxuan Li ◽  
Mingxia Lu ◽  
Jiangtao Feng ◽  
Jingchao Zhang ◽  
Peter M. Smowton ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Future Development ◽  
State Of The Art ◽  
Emerging Technology ◽  
Colloidal Quantum Dots ◽  
Large Area ◽  
Light Emitting ◽  
Ambient Lighting ◽  
Colloidal Quantum Dot

Electroluminescence light-emitting diodes enabled by hybridising colloidal quantum dots is an emerging technology for large-area and foldable ambient lighting. We summerise state-of-the-art scientific challenges and prospect their future development.

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.

Optical Characterization of CdSe Colloidal Quantum Dot/ MEH-PPV Polymer Nanocomposites Spin-cast on GaAs Substrates

2006 ◽  
Vol 939 ◽  
Author(s):  
Adrienne D. Stiff-Roberts ◽  
Abhishek Gupta ◽  
Zhiya Zhao
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Optoelectronic Devices ◽  
Photogenerated Electron ◽  
Polymer Nanocomposite ◽  
Colloidal Quantum Dots ◽  
Infrared Light ◽  
Gaas Substrates ◽  
Conducting Polymer Nanocomposite ◽  
Colloidal Quantum Dot

ABSTRACTThe motivation and distinct approach for this work is the use of intraband transitions within colloidal quantum dots for the detection of mid- (3-5 μm) and/or long-wave (8-14 μm) infrared light. The CdSe colloidal quantum dot/MEH-PPV conducting polymer nanocomposite material is well-suited for this application due to the ∼1.5 eV difference between the corresponding electron affinities. Therefore, CdSe colloidal quantum dots embedded in MEH-PPV should provide electron quantum confinement such that intraband transitions can occur in the conduction band. Further, it is desirable to deposit these nanocomposites on semiconductor substrates to enable charge transfer of photogenerated electron-hole pairs from the substrate to the nanocomposite. In this way, optoelectronic devices analogous to those achieved using Stranski-Krastanow quantum dots grown by epitaxy can be realized. To date, there have been relatively few investigations of colloidal quantum dot nanocomposites deposited on GaAs substrates. However, it is crucial to develop a better understanding of the optical properties of these hybrid material systems if such heterostructures are to be used for optoelectronic devices, such as infrared photodetectors. By depositing the nanocomposites on GaAs substrates featuring different doping characteristics and measuring the corresponding Fourier transform infrared absorbance, the feasibility of these intraband transitions is demonstrated at room temperature.

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

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.

Reduced efficiency roll-off in light-emitting diodes enabled by quantum dot–conducting polymer nanohybrids

2014 ◽  
Vol 2 (25) ◽  
pp. 4974-4979 ◽  
Author(s):  
Wan Ki Bae ◽  
Jaehoon Lim ◽  
Matthias Zorn ◽  
Jeonghun Kwak ◽  
Young-Shin Park ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Conducting Polymers ◽  
Conducting Polymer ◽  
Light Emitting Diodes ◽  
Colloidal Quantum Dots ◽  
Light Emitting

Hybridization of colloidal quantum-dots and conducting polymers improves the efficiency roll-off of quantum-dot light-emitting diodes.

scholarly journals Colour-Encoded Electroluminescent White Light-emitting Diode Enabled by Perovskite-Cu-In-S Quantum Composites

2021 ◽  
Author(s):  
Seung-Bum Cho ◽  
Jung Inn Sohn ◽  
Sang-Seok Lee ◽  
Seung-Gyun Moon ◽  
Bo Hou ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Light Source ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Large Area ◽  
Solution Processed ◽  
Light Emitting ◽  
Ambient Lighting ◽  
White Light Emitting Diodes

Solution-processed quantum dot (QD) white light-emitting diodes (WLEDs) have received much attention as a viable light source in the next-generation large-area ambient lighting, flexible photonics and full-colour display backlighting technologies....

scholarly journals Solution processed infrared- and thermo-photovoltaics based on 0.7 eV bandgap PbS colloidal quantum dots

Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 838-843 ◽  
Author(s):  
Yu Bi ◽  
Arnau Bertran ◽  
Shuchi Gupta ◽  
Iñigo Ramiro ◽  
Santanu Pradhan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Solar Spectrum ◽  
Colloidal Quantum Dots ◽  
Solution Processed ◽  
Colloidal Quantum Dot

Colloidal quantum dot photovoltaics with a bandgap of 0.7 eV demonstrate potential to harness the infrared solar spectrum as well as in waste heat recovery.

scholarly journals Emergence of Impurity-Doped Nanocrystal Light-Emitting Diodes

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1226
Author(s):  
Dongxiang Luo ◽  
Lin Wang ◽  
Ying Qiu ◽  
Runda Huang ◽  
Baiquan Liu
Keyword(s):  
Quantum Dot ◽  
Quantum Well ◽  
High Performance ◽  
Light Emitting Diodes ◽  
State Of The Art ◽  
Material Design ◽  
Light Emitting ◽  
Impurity Doped ◽  
Colloidal Quantum Dot ◽  
Increasing Demand

In recent years, impurity-doped nanocrystal light-emitting diodes (LEDs) have aroused both academic and industrial interest since they are highly promising to satisfy the increasing demand of display, lighting, and signaling technologies. Compared with undoped counterparts, impurity-doped nanocrystal LEDs have been demonstrated to possess many extraordinary characteristics including enhanced efficiency, increased luminance, reduced voltage, and prolonged stability. In this review, recent state-of-the-art concepts to achieve high-performance impurity-doped nanocrystal LEDs are summarized. Firstly, the fundamental concepts of impurity-doped nanocrystal LEDs are presented. Then, the strategies to enhance the performance of impurity-doped nanocrystal LEDs via both material design and device engineering are introduced. In particular, the emergence of three types of impurity-doped nanocrystal LEDs is comprehensively highlighted, namely impurity-doped colloidal quantum dot LEDs, impurity-doped perovskite LEDs, and impurity-doped colloidal quantum well LEDs. At last, the challenges and the opportunities to further improve the performance of impurity-doped nanocrystal LEDs are described.

Semitransparent Quantum Dot Light-Emitting Diodes by Cadmium-Free Colloidal Quantum Dots

2014 ◽  
Vol 14 (11) ◽  
pp. 8636-8640 ◽  
Author(s):  
Yohan Kim ◽  
Christian Ippen ◽  
Tonino Greco ◽  
Min Suk Oh ◽  
Chul Jong Han ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Colloidal Quantum Dots ◽  
Light Emitting
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