ACS applied materials & interfaces, volume 8, issue 34, pages 22526-22533

Site-Specific Ligand Interactions Favor the Tetragonal Distortion of PbS Nanocrystal Superlattices

J. Novák 1, 2
R Banerjee 3
Andreas Kornowski 4
Maciej Jankowski 5
Alexander André 6
Horst Weller 4
Frank Schreiber 7, 8
Marcus Scheele 6, 8
Publication typeJournal Article
Publication date2016-08-17
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN19448244, 19448252
General Materials Science
Abstract
We analyze the structure and morphology of mesocrystalline, body-centered tetragonal (bct) superlattices of PbS nanocrystals functionalized with oleic acid. On the basis of combined scattering and real space imaging, we derive a three-dimensional (3D) model of the superlattice and show that the bct structure benefits from a balanced combination of {100}PbS-{100}PbS and {111}PbS-{111}PbS interactions between neighboring layers of nanocrystals, which uniquely stabilizes this structure. These interactions are enabled by the coaxial alignment of the atomic lattices of PbS with the superlattice. In addition, we find that this preferential orientation is already weakly present within isolated monolayers. By adding excess oleic acid to the nanocrystal solution, tetragonal distortion is suppressed, and we observe assembly into a bilayered hexagonal lattice reminiscent of a honeycomb with grain sizes of several micrometers.

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Novák J. et al. Site-Specific Ligand Interactions Favor the Tetragonal Distortion of PbS Nanocrystal Superlattices // ACS applied materials & interfaces. 2016. Vol. 8. No. 34. pp. 22526-22533.
GOST all authors (up to 50) Copy
Novák J., Banerjee R., Kornowski A., Jankowski M., André A., Weller H., Schreiber F., Scheele M. Site-Specific Ligand Interactions Favor the Tetragonal Distortion of PbS Nanocrystal Superlattices // ACS applied materials & interfaces. 2016. Vol. 8. No. 34. pp. 22526-22533.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acsami.6b06989
UR - https://doi.org/10.1021/acsami.6b06989
TI - Site-Specific Ligand Interactions Favor the Tetragonal Distortion of PbS Nanocrystal Superlattices
T2 - ACS applied materials & interfaces
AU - Kornowski, Andreas
AU - André, Alexander
AU - Novák, J.
AU - Banerjee, R
AU - Jankowski, Maciej
AU - Weller, Horst
AU - Schreiber, Frank
AU - Scheele, Marcus
PY - 2016
DA - 2016/08/17 00:00:00
PB - American Chemical Society (ACS)
SP - 22526-22533
IS - 34
VL - 8
SN - 1944-8244
SN - 1944-8252
ER -
BibTex |
Cite this
BibTex Copy
@article{2016_Novák,
author = {Andreas Kornowski and Alexander André and J. Novák and R Banerjee and Maciej Jankowski and Horst Weller and Frank Schreiber and Marcus Scheele},
title = {Site-Specific Ligand Interactions Favor the Tetragonal Distortion of PbS Nanocrystal Superlattices},
journal = {ACS applied materials & interfaces},
year = {2016},
volume = {8},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/acsami.6b06989},
number = {34},
pages = {22526--22533},
doi = {10.1021/acsami.6b06989}
}
MLA
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MLA Copy
Novák, J., et al. “Site-Specific Ligand Interactions Favor the Tetragonal Distortion of PbS Nanocrystal Superlattices.” ACS applied materials & interfaces, vol. 8, no. 34, Aug. 2016, pp. 22526-22533. https://doi.org/10.1021/acsami.6b06989.
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