Colloidal quantum dot surface engineering for high performance optoelectronic devices

2015 ◽  
Author(s):  
Zhijun Ning ◽  
Xiwen Gong ◽  
Riccardo Comin ◽  
Grant Walters ◽  
Fengjia Fan ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Performance ◽  
Surface Engineering ◽  
Optoelectronic Devices ◽  
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.

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.

Extended SWIR high performance and high definition colloidal quantum dot imagers

2020 ◽  
Author(s):  
Sean Hinds ◽  
Ethan Klem ◽  
Christopher Gregory ◽  
Allan Hilton ◽  
Greg Hames ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Performance ◽  
High Definition ◽  
Colloidal Quantum Dot

High Performance AC Electroluminescence from Colloidal Quantum Dot Hybrids

2012 ◽  
Vol 24 (33) ◽  
pp. 4540-4546 ◽  
Author(s):  
Sung Hwan Cho ◽  
Jinwoo Sung ◽  
Ihn Hwang ◽  
Richard Hahnkee Kim ◽  
Yeon Sik Choi ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Performance ◽  
Colloidal Quantum Dot

Graphdiyne: An Efficient Hole Transporter for Stable High-Performance Colloidal Quantum Dot Solar Cells

2016 ◽  
Vol 26 (29) ◽  
pp. 5284-5289 ◽  
Author(s):  
Zhiwen Jin ◽  
Mingjian Yuan ◽  
Hui Li ◽  
Hui Yang ◽  
Qing Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
High Performance ◽  
Quantum Dot Solar Cells ◽  
Colloidal Quantum Dot

High performance PbSe colloidal quantum dot vertical field effect phototransistors

2016 ◽  
Vol 27 (42) ◽  
pp. 425204 ◽  
Author(s):  
Haiting Zhang ◽  
Yating Zhang ◽  
Xiaoxian Song ◽  
Yu Yu ◽  
Mingxuan Cao ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Field Effect ◽  
High Performance ◽  
Vertical Field ◽  
Colloidal Quantum Dot ◽  
Vertical Field Effect

Hybrid zinc oxide/graphene electrodes for depleted heterojunction colloidal quantum-dot solar cells

2015 ◽  
Vol 17 (37) ◽  
pp. 24412-24419 ◽  
Author(s):  
Mohammad Mahdi Tavakoli ◽  
Hossein Aashuri ◽  
Abdolreza Simchi ◽  
Zhiyong Fan
Keyword(s):  
Zinc Oxide ◽  
Solar Cells ◽  
Quantum Dot ◽  
Optoelectronic Devices ◽  
Hybrid Nanocomposites ◽  
Quantum Dot Solar Cells ◽  
Colloidal Quantum Dot

Recently, hybrid nanocomposites consisting of graphene/nanomaterial heterostructures have emerged as promising candidates for the fabrication of optoelectronic devices.

High-performance SWIR sensing from colloidal quantum dot photodiode arrays

2013 ◽  
Author(s):  
Ethan Klem ◽  
Jay Lewis ◽  
Chris Gregory ◽  
Garry Cunningham ◽  
Dorota Temple ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Performance ◽  
Colloidal Quantum Dot ◽  
Photodiode Arrays
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