Site-Specific Ligand Interactions Favor the Tetragonal Distortion of PbS Nanocrystal Superlattices
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00091017" target="_blank" >RIV/00216224:14310/16:00091017 - isvavai.cz</a>
Result on the web
<a href="http://pubs.acs.org/doi/abs/10.1021/acsami.6b06989" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/acsami.6b06989</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.6b06989" target="_blank" >10.1021/acsami.6b06989</a>
Alternative languages
Result language
angličtina
Original language name
Site-Specific Ligand Interactions Favor the Tetragonal Distortion of PbS Nanocrystal Superlattices
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS APPLIED MATERIALS & INTERFACES
ISSN
1944-8244
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
34
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
22526-22533
UT code for WoS article
000382514100083
EID of the result in the Scopus database
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