scholarly journals III–V colloidal nanocrystals: control of covalent surfaces

2020 ◽  
Vol 11 (4) ◽  
pp. 913-922 ◽  
Author(s):  
Youngsik Kim ◽  
Jun Hyuk Chang ◽  
Hyekyoung Choi ◽  
Yong-Hyun Kim ◽  
Wan Ki Bae ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Surface Energy ◽  
Surface Structure ◽  
Rational Design ◽  
Energy Levels ◽  
Colloidal Quantum Dots ◽  
Colloidal Nanocrystals ◽  
Energy Trap

Unveiling the atomistic surface structure of colloidal quantum dots may provide the route to rational design of highly performing III–V nanocrystals with control over energy levels position, surface energy, trap passivation, and heterojunction interface.

Recent advances on single photon sources based on single colloidal nanocrystals

2010 ◽  
Vol 18 (1) ◽  
pp. 1-9 ◽  
Author(s):  
M. Vittorio ◽  
F. Pisanello ◽  
L. Martiradonna ◽  
A. Qualtieri ◽  
T. Stomeo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Single Photon ◽  
Life Time ◽  
Colloidal Quantum Dots ◽  
Optical Systems ◽  
Colloidal Nanocrystals ◽  
Single Photons ◽  
Light Emitting Devices ◽  
Photon Sources

AbstractSingle colloidal quantum dots (QDs) are increasingly exploited as triggered sources of single photons. This review reports on recent results on single photon sources (SPS) based on colloidal quantum dots, whose size, shape and optical properties can be finely tuned by wet chemistry approach. First, we address the optical properties of different colloidal nanocrystals, such as dots, rods and dot in rods and their use as single photon sources will be discussed. Then, we describe different techniques for isolation and positioning single QDs, a major issue for fabrication of single photon sources, and various approaches for the embedding single nanocrystals inside microcavities. The insertion of single colloidal QDs in quantum confined optical systems allows one to improve their overall optical properties and performances in terms of efficiency, directionality, life time, and polarization control. Finally, electrical pumping of colloidal nanocrystals light emitting devices and of NC-based single photon sources is reviewed.

Model for Adsorption of Ligands to Colloidal Quantum Dots with Concentration-Dependent Surface Structure

ACS Nano ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 557-565 ◽  
Author(s):  
Adam J. Morris-Cohen ◽  
Vladislav Vasilenko ◽  
Victor A. Amin ◽  
Matthew G. Reuter ◽  
Emily A. Weiss
Keyword(s):  
Quantum Dots ◽  
Surface Structure ◽  
Colloidal Quantum Dots

Surface Organic Ligands-Passivated Quantum Dots: Toward High-Performance Light-Emitting Diodes with Long Lifetime

2021 ◽  
Author(s):  
Lishuang Wang ◽  
Ying Lv ◽  
Jie Lin ◽  
Jialong Zhao ◽  
Xingyuan Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Ligands ◽  
Colloidal Quantum Dots ◽  
Core Shell ◽  
Light Emitting ◽  
Long Lifetime

For quantum dots light-emitting diodes (QLEDs), typical colloidal quantum dots (QDs) are usually composed of a core/shell heterostructure which is covered with organic ligands as surface passivated materials to confine...

scholarly journals Introduction to special issue: Colloidal quantum dots

2020 ◽  
Vol 153 (24) ◽  
pp. 240401
Author(s):  
Matthew C. Beard ◽  
Xiaogang Peng ◽  
Zeger Hens ◽  
Emily A. Weiss
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Special Issue
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