Langmuir, volume 31, issue 1, pages 506-513
Self-Organization of Colloidal PbS Quantum Dots into Highly Ordered Superlattices
Alexander V. Baranov
1
,
Valery V. Golubkov
2
,
Aleksandr P. Litvin
1
,
Anatoly V. Fedorov
1
,
Kevin Berwick
3
3
School of Electronic
and Communications Engineering, Dublin Institute of Technology, Kevin
Street, Dublin 8, Ireland
|
Publication type: Journal Article
Publication date: 2015-01-02
Spectroscopy
Electrochemistry
Condensed Matter Physics
General Materials Science
Surfaces and Interfaces
Abstract
X-ray structural analysis, together with steady-state and transient optical spectroscopy, is used for studying the morphology and optical properties of quantum dot superlattices (QDSLs) formed on glass substrates by the self-organization of PbS quantum dots with a variety of surface ligands. The diameter of the PbS QDs varies from 2.8 to 8.9 nm. The QDSL's period is proportional to the dot diameter, increasing slightly with dot size due to the increase in ligand layer thickness. Removal of the ligands has a number of effects on the morphology of QDSLs formed from the dots of different sizes: for small QDs the reduction in the amount of ligands obstructs the self-organization process, impairing the ordering of the QDSLs, while for large QDs the ordering of the superlattice structure is improved, with an interdot distance as low as 0.4 nm allowing rapid charge carrier transport through the QDSLs. QDSL formation does not induce significant changes to the absorption and photoluminescence spectra of the QDs. However, the luminescence decay time is reduced dramatically, due to the appearance of nonradiative relaxation channels.
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Citations by publishers
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8
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8 publications, 25.81%
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Royal Society of Chemistry (RSC)
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Elsevier
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Pleiades Publishing
3 publications, 9.68%
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2 publications, 6.45%
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IOP Publishing
2 publications, 6.45%
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1 publication, 3.23%
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Multidisciplinary Digital Publishing Institute (MDPI)
1 publication, 3.23%
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Japan Society of Applied Physics
1 publication, 3.23%
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Springer Nature
1 publication, 3.23%
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Optical Society of America
1 publication, 3.23%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 3.23%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Baranov A. V. et al. Self-Organization of Colloidal PbS Quantum Dots into Highly Ordered Superlattices // Langmuir. 2015. Vol. 31. No. 1. pp. 506-513.
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Baranov A. V., Ushakova E. V., Golubkov V. V., Litvin A. P., Parfenov P. S., Fedorov A. V., Berwick K. Self-Organization of Colloidal PbS Quantum Dots into Highly Ordered Superlattices // Langmuir. 2015. Vol. 31. No. 1. pp. 506-513.
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TY - JOUR
DO - 10.1021/la503913z
UR - https://doi.org/10.1021/la503913z
TI - Self-Organization of Colloidal PbS Quantum Dots into Highly Ordered Superlattices
T2 - Langmuir
AU - Baranov, Alexander V.
AU - Ushakova, Elena V.
AU - Golubkov, Valery V.
AU - Litvin, Aleksandr P.
AU - Parfenov, Peter S.
AU - Fedorov, Anatoly V.
AU - Berwick, Kevin
PY - 2015
DA - 2015/01/02 00:00:00
PB - American Chemical Society (ACS)
SP - 506-513
IS - 1
VL - 31
SN - 0743-7463
SN - 1520-5827
ER -
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@article{2015_Baranov,
author = {Alexander V. Baranov and Elena V. Ushakova and Valery V. Golubkov and Aleksandr P. Litvin and Peter S. Parfenov and Anatoly V. Fedorov and Kevin Berwick},
title = {Self-Organization of Colloidal PbS Quantum Dots into Highly Ordered Superlattices},
journal = {Langmuir},
year = {2015},
volume = {31},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/la503913z},
number = {1},
pages = {506--513},
doi = {10.1021/la503913z}
}
Cite this
MLA
Copy
Baranov, Alexander V., et al. “Self-Organization of Colloidal PbS Quantum Dots into Highly Ordered Superlattices.” Langmuir, vol. 31, no. 1, Jan. 2015, pp. 506-513. https://doi.org/10.1021/la503913z.
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