Journal of Physical Chemistry C, volume 126, issue 2, pages 986-996
On the Formation of Honeycomb Superlattices from PbSe Quantum Dots: The Role of Solvent-Mediated Repulsion and Facet-to-Facet Attraction in NC Self-Assembly and Alignment
Publication type: Journal Article
Publication date: 2022-01-05
Journal:
Journal of Physical Chemistry C
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 3.7
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
Semiconductor superstructures made from assembled and epitaxially connected colloidal nanocrystals (NCs) hold promise for crystalline solids with atomic and nanoscale periodicity, whereby the band structure can be tuned by the geometry. The formation of especially the honeycomb superstructure on a liquid substrate is far from understood and suffers from weak replicability. Here, we introduce 1,4-butanediol as an unreactive substrate component, which is mixed with reactive ethylene glycol to tune for optimal reactivity. It shows us that the honeycomb superlattice has a NC precursor state before oriented attachment occurs, in the form of a self-assembled hexagonal bilayer. We propose that the difference between the formation of the square or honeycomb superstructure occurs during the self-assembly phase. To form a honeycomb superstructure, it is crucial to stabilize the hexagonal bilayer in the presence of solvent-mediated repulsion. In contrast, a square superstructure benefits from the contraction of a hexagonal monolayer due to the absence of a solvent. A second experiment shows the very last stage of the process, where the increasing alignment of NCs is quantified using selected-area electron diffraction (SAED). The combination of transmission electron microscopy (TEM), SAED, and tomography used in these experiments shows that the (100)/(100) facet-to-facet attraction is the main driving force for NC alignment and attachment. These findings are validated by coarse-grained molecular dynamic simulations, where we show that an optimal NC repulsion is crucial to create the honeycomb superstructure.
Top-30
Citations by journals
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Journal of Physical Chemistry C
1 publication, 33.33%
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Russian Chemical Reviews
1 publication, 33.33%
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Advanced Functional Materials
1 publication, 33.33%
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1
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Citations by publishers
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1
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American Chemical Society (ACS)
1 publication, 33.33%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 33.33%
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Wiley
1 publication, 33.33%
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1
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- We do not take into account publications without a DOI.
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- Statistics recalculated weekly.
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Van Der Sluijs M. M. et al. On the Formation of Honeycomb Superlattices from PbSe Quantum Dots: The Role of Solvent-Mediated Repulsion and Facet-to-Facet Attraction in NC Self-Assembly and Alignment // Journal of Physical Chemistry C. 2022. Vol. 126. No. 2. pp. 986-996.
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Van Der Sluijs M. M., Sanders D., Jansen K. J., Soligno G., Vanmaekelbergh D., Peters A. L. On the Formation of Honeycomb Superlattices from PbSe Quantum Dots: The Role of Solvent-Mediated Repulsion and Facet-to-Facet Attraction in NC Self-Assembly and Alignment // Journal of Physical Chemistry C. 2022. Vol. 126. No. 2. pp. 986-996.
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TY - JOUR
DO - 10.1021/acs.jpcc.1c07430
UR - https://doi.org/10.1021/acs.jpcc.1c07430
TI - On the Formation of Honeycomb Superlattices from PbSe Quantum Dots: The Role of Solvent-Mediated Repulsion and Facet-to-Facet Attraction in NC Self-Assembly and Alignment
T2 - Journal of Physical Chemistry C
AU - Sanders, Dinja
AU - Jansen, Kevin J
AU - Van Der Sluijs, Maaike M
AU - Soligno, Giuseppe
AU - Vanmaekelbergh, Daniel
AU - Peters, Anna L
PY - 2022
DA - 2022/01/05 00:00:00
PB - American Chemical Society (ACS)
SP - 986-996
IS - 2
VL - 126
SN - 1932-7447
SN - 1932-7455
ER -
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@article{2022_Van Der Sluijs,
author = {Dinja Sanders and Kevin J Jansen and Maaike M Van Der Sluijs and Giuseppe Soligno and Daniel Vanmaekelbergh and Anna L Peters},
title = {On the Formation of Honeycomb Superlattices from PbSe Quantum Dots: The Role of Solvent-Mediated Repulsion and Facet-to-Facet Attraction in NC Self-Assembly and Alignment},
journal = {Journal of Physical Chemistry C},
year = {2022},
volume = {126},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/acs.jpcc.1c07430},
number = {2},
pages = {986--996},
doi = {10.1021/acs.jpcc.1c07430}
}
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Van Der Sluijs, Maaike M., et al. “On the Formation of Honeycomb Superlattices from PbSe Quantum Dots: The Role of Solvent-Mediated Repulsion and Facet-to-Facet Attraction in NC Self-Assembly and Alignment.” Journal of Physical Chemistry C, vol. 126, no. 2, Jan. 2022, pp. 986-996. https://doi.org/10.1021/acs.jpcc.1c07430.