Colloidal quantum dots for optoelectronics

2017 ◽  
Vol 5 (26) ◽  
pp. 13252-13275 ◽  
Author(s):  
A. P. Litvin ◽  
I. V. Martynenko ◽  
F. Purcell-Milton ◽  
A. V. Baranov ◽  
A. V. Fedorov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Recent Progress ◽  
Photovoltaic Cells ◽  
Optoelectronic Devices ◽  
Colloidal Quantum Dots ◽  
New Concepts

This review is focused on new concepts and recent progress in the development of three major quantum dot (QD) based optoelectronic devices: photovoltaic cells, photodetectors and LEDs.

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.

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.

Recent progress of III–V quantum dot infrared photodetectors on silicon

2019 ◽  
Vol 7 (46) ◽  
pp. 14441-14453 ◽  
Author(s):  
Aobo Ren ◽  
Liming Yuan ◽  
Hao Xu ◽  
Jiang Wu ◽  
Zhiming Wang
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Epitaxial Growth ◽  
Recent Progress ◽  
Infrared Photodetectors ◽  
Heterogeneous Integration ◽  
Si Substrates ◽  
Quantum Dot Infrared Photodetectors ◽  
Infrared Photodetection

Heterogeneous integration of III–V quantum dots on Si substrates for infrared photodetection is reviewed, focusing on direct epitaxial growth and bonding techniques over the last few years.

Influence of quantum dot concentration on the opto-electronic properties of colloidal quantum-dots LEDs

2020 ◽  
Vol 109 ◽  
pp. 110251
Author(s):  
Huu Tuan Nguyen ◽  
Raja Das ◽  
Anh Tuan Duong ◽  
Soonil Lee
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Electronic Properties ◽  
Colloidal Quantum Dots

Harnessing the properties of colloidal quantum dots in luminescent solar concentrators

2018 ◽  
Vol 47 (15) ◽  
pp. 5866-5890 ◽  
Author(s):  
Yufeng Zhou ◽  
Haiguang Zhao ◽  
Dongling Ma ◽  
Federico Rosei
Keyword(s):  
Quantum Dots ◽  
Recent Progress ◽  
Colloidal Quantum Dots ◽  
Solar Concentrators ◽  
Luminescent Solar Concentrators

This review summarizes the recent progress, challenges and perspectives of luminescent solar concentrators based on colloidal quantum dots via harnessing their properties.

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.

Recent progress of infrared photodetectors based on lead chalcogenide colloidal quantum dots

2019 ◽  
Vol 28 (2) ◽  
pp. 020701 ◽  
Author(s):  
Jinming Hu ◽  
Yuansheng Shi ◽  
Zhenheng Zhang ◽  
Ruonan Zhi ◽  
Shengyi Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Recent Progress ◽  
Colloidal Quantum Dots ◽  
Infrared Photodetectors ◽  
Lead Chalcogenide

Efficient FAPbI3-PbS quantum dot graphene-based phototransistors

2021 ◽  
Author(s):  
Samaneh Aynehband ◽  
Maryam Mohammadi ◽  
Rana Poushimin ◽  
Jean-Michel Nunzi ◽  
A. Simchi
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Quantum Dot ◽  
High Performance ◽  
High Mobility ◽  
Charge Carriers ◽  
Colloidal Quantum Dots ◽  
Mobility Of Charge Carriers ◽  
Tunable Optical Properties ◽  
Pbs Quantum Dot

The high mobility of charge carriers in graphene (G) combined with the ease of processing and tunable optical properties of colloidal quantum dots (CQD) have provided high-performance hybrids for the...

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