Organic Molecules as Tools To Control the Growth, Surface Structure, and Redox Activity of Colloidal Quantum Dots

2013 ◽  
Vol 46 (11) ◽  
pp. 2607-2615 ◽  
Author(s):  
Emily A. Weiss
Keyword(s):  
Quantum Dots ◽  
Surface Structure ◽  
Organic Molecules ◽  
Colloidal Quantum Dots ◽  
Redox Activity ◽  
Growth Surface

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.

Charge transfer dynamics in CsPbBr3 perovskite quantum dots–anthraquinone/fullerene (C60) hybrids

Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 862-869 ◽  
Author(s):  
Sadananda Mandal ◽  
Lijo George ◽  
Nikolai V. Tkachenko
Keyword(s):  
Quantum Dots ◽  
Charge Transfer ◽  
Organic Molecules ◽  
Photophysical Properties ◽  
Fullerene C60 ◽  
Colloidal Quantum Dots ◽  
Perovskite Quantum Dots ◽  
Charge Transfer Dynamics

An advantage of colloidal quantum dots, particularly perovskite quantum dots (PQDs), as photoactive components is that they easily form complexes with functional organic molecules, which results in hybrids with enriched photophysical properties.

scholarly journals Singlet and Triplet Exciton Harvesting in the Thin Films of Colloidal Quantum Dots Interfacing Phosphorescent Small Organic Molecules

2014 ◽  
Vol 118 (45) ◽  
pp. 25964-25969 ◽  
Author(s):  
Burak Guzelturk ◽  
Pedro Ludwig Hernandez Martinez ◽  
Dewei Zhao ◽  
Xiao Wei Sun ◽  
Hilmi Volkan Demir
Keyword(s):  
Thin Films ◽  
Quantum Dots ◽  
Organic Molecules ◽  
Triplet Exciton ◽  
Colloidal Quantum Dots ◽  
Small Organic Molecules

Two-Photon Absorption in CdSe Colloidal Quantum Dots Compared to Organic Molecules

ACS Nano ◽  
2014 ◽  
Vol 8 (12) ◽  
pp. 12572-12586 ◽  
Author(s):  
Nikolay S. Makarov ◽  
Pick Chung Lau ◽  
Christopher Olson ◽  
Kirill A. Velizhanin ◽  
Kyril M. Solntsev ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Organic Molecules ◽  
Photon Absorption ◽  
Colloidal Quantum Dots ◽  
Two Photon Absorption ◽  
Two Photon

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

scholarly journals Recent Developments of Solar Cells from PbS Colloidal Quantum Dots

2020 ◽  
Vol 10 (5) ◽  
pp. 1743 ◽  
Author(s):  
Tomasz Blachowicz ◽  
Andrea Ehrmann
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Solar Cells ◽  
Organic Molecules ◽  
Semiconductor Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Spectroscopic Techniques ◽  
Surface Molecules ◽  
Recent Developments ◽  
Pbs Quantum Dots

PbS (lead sulfide) colloidal quantum dots consist of crystallites with diameters in the nanometer range with organic molecules on their surfaces, partly with additional metal complexes as ligands. These surface molecules are responsible for solubility and prevent aggregation, but the interface between semiconductor quantum dots and ligands also influences the electronic structure. PbS quantum dots are especially interesting for optoelectronic applications and spectroscopic techniques, including photoluminescence, photodiodes and solar cells. Here we concentrate on the latter, giving an overview of the optical properties of solar cells prepared with PbS colloidal quantum dots, produced by different methods and combined with diverse other materials, to reach high efficiencies and fill factors.

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