---
_id: '7456'
abstract:
- lang: eng
  text: The rational design of monodisperse ferroelectric nanocrystals with controlled
    size and shape and their organization into hierarchical structures has been a
    critical step for understanding the polar ordering in nanoscale ferroelectrics,
    as well as the design of nanocrystal-based functional materials which harness
    the properties of individual nanoparticles and the collective interactions between
    them. We report here on the synthesis and self-assembly of aggregate-free, single-crystalline
    titanium-based perovskite nanoparticles with controlled morphology and surface
    composition by using a simple, easily scalable and highly versatile colloidal
    route. Single-crystalline, non-aggregated BaTiO3 colloidal nanocrystals, used
    as a model system, have been prepared under solvothermal conditions at temperatures
    as low as 180 °C. The shape of the nanocrystals was tuned from spheroidal to cubic
    upon changing the polarity of the solvent, whereas their size was varied from
    16 to 30 nm for spheres and 5 to 78 nm for cubes by changing the concentration
    of the precursors and the reaction time, respectively. The hydrophobic, oleic
    acid-passivated nanoparticles exhibit very good solubility in non-polar solvents
    and can be rendered dispersible in polar solvents by a simple process involving
    the oxidative cleavage of the double bond upon treating the nanopowders with the
    Lemieux–von Rudloff reagent. Lattice dynamic analysis indicated that regardless
    of their size, BaTiO3 nanocrystals present local disorder within the perovskite
    unit cell, associated with the existence of polar ordering. We also demonstrate
    for the first time that, in addition to being used for fabricating large area,
    crack-free, highly uniform films, BaTiO3 nanocubes can serve as building blocks
    for the design of 2D and 3D mesoscale structures, such as superlattices and superparticles.
    Interestingly, the type of superlattice structure (simple cubic or face centered
    cubic) appears to be determined by the type of solvent in which the nanocrystals
    were dispersed. This approach provides an excellent platform for the synthesis
    of other titanium-based perovskite colloidal nanocrystals with controlled chemical
    composition, surface structure and morphology and for their assembly into complex
    architectures, therefore opening the door for the design of novel mesoscale functional
    materials/nanocomposites with potential applications in energy conversion, data
    storage and the biomedical field.
article_processing_charge: No
article_type: original
author:
- first_name: Daniela
  full_name: Caruntu, Daniela
  last_name: Caruntu
- first_name: Taha
  full_name: Rostamzadeh, Taha
  last_name: Rostamzadeh
- first_name: Tommaso
  full_name: Costanzo, Tommaso
  id: D93824F4-D9BA-11E9-BB12-F207E6697425
  last_name: Costanzo
  orcid: 0000-0001-9732-3815
- first_name: Saman
  full_name: Salemizadeh Parizi, Saman
  last_name: Salemizadeh Parizi
- first_name: Gabriel
  full_name: Caruntu, Gabriel
  last_name: Caruntu
citation:
  ama: Caruntu D, Rostamzadeh T, Costanzo T, Salemizadeh Parizi S, Caruntu G. Solvothermal
    synthesis and controlled self-assembly of monodisperse titanium-based perovskite
    colloidal nanocrystals. <i>Nanoscale</i>. 2015;7(30):12955-12969. doi:<a href="https://doi.org/10.1039/c5nr00737b">10.1039/c5nr00737b</a>
  apa: Caruntu, D., Rostamzadeh, T., Costanzo, T., Salemizadeh Parizi, S., &#38; Caruntu,
    G. (2015). Solvothermal synthesis and controlled self-assembly of monodisperse
    titanium-based perovskite colloidal nanocrystals. <i>Nanoscale</i>. RSC. <a href="https://doi.org/10.1039/c5nr00737b">https://doi.org/10.1039/c5nr00737b</a>
  chicago: Caruntu, Daniela, Taha Rostamzadeh, Tommaso Costanzo, Saman Salemizadeh
    Parizi, and Gabriel Caruntu. “Solvothermal Synthesis and Controlled Self-Assembly
    of Monodisperse Titanium-Based Perovskite Colloidal Nanocrystals.” <i>Nanoscale</i>.
    RSC, 2015. <a href="https://doi.org/10.1039/c5nr00737b">https://doi.org/10.1039/c5nr00737b</a>.
  ieee: D. Caruntu, T. Rostamzadeh, T. Costanzo, S. Salemizadeh Parizi, and G. Caruntu,
    “Solvothermal synthesis and controlled self-assembly of monodisperse titanium-based
    perovskite colloidal nanocrystals,” <i>Nanoscale</i>, vol. 7, no. 30. RSC, pp.
    12955–12969, 2015.
  ista: Caruntu D, Rostamzadeh T, Costanzo T, Salemizadeh Parizi S, Caruntu G. 2015.
    Solvothermal synthesis and controlled self-assembly of monodisperse titanium-based
    perovskite colloidal nanocrystals. Nanoscale. 7(30), 12955–12969.
  mla: Caruntu, Daniela, et al. “Solvothermal Synthesis and Controlled Self-Assembly
    of Monodisperse Titanium-Based Perovskite Colloidal Nanocrystals.” <i>Nanoscale</i>,
    vol. 7, no. 30, RSC, 2015, pp. 12955–69, doi:<a href="https://doi.org/10.1039/c5nr00737b">10.1039/c5nr00737b</a>.
  short: D. Caruntu, T. Rostamzadeh, T. Costanzo, S. Salemizadeh Parizi, G. Caruntu,
    Nanoscale 7 (2015) 12955–12969.
date_created: 2020-02-05T14:16:37Z
date_published: 2015-08-14T00:00:00Z
date_updated: 2023-02-23T13:08:24Z
day: '14'
doi: 10.1039/c5nr00737b
extern: '1'
external_id:
  pmid:
  - '26168304'
intvolume: '         7'
issue: '30'
language:
- iso: eng
month: '08'
oa_version: None
page: 12955-12969
pmid: 1
publication: Nanoscale
publication_identifier:
  issn:
  - 2040-3364
  - 2040-3372
publication_status: published
publisher: RSC
quality_controlled: '1'
status: public
title: Solvothermal synthesis and controlled self-assembly of monodisperse titanium-based
  perovskite colloidal nanocrystals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2015'
...