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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

  • Czech description

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

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 &amp; INTERFACES

  • ISSN

    1944-8244

  • e-ISSN

  • 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