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Red-emissive nanocrystals of Cs4Mnx Cd1-xSb2Cl12 layered perovskites

Sartori, Emanuela ; Campolucci, Marta ; Baranov, Dmitry LU orcid ; Zeng, Min ; Toso, Stefano ; Divitini, Giorgio ; Ferretti, Maurizio ; Hens, Zeger ; Manna, Liberato and Locardi, Federico (2022) In Nanoscale 14(2). p.305-311
Abstract
Layered double perovskites are currently being investigated as emerging
halide-based materials for optoelectronic applications. Herein, we
present the synthesis of Cs4MnxCd1−xSb2Cl12 (0 ≤ x
≤ 1) nanocrystals (NCs). X-ray powder diffraction evidences the
retention of the same crystal structure for all the inspected
compositions; transmission electron microscopy revealed monodisperse
particles with a mean size between 10.7 nm and 12.7 nm. The absorption
spectra are mostly determined by transitions related to Sb3+, whereas Mn2+ induced a red emission in the 625–650 nm range. The photoluminescence emission... (More)
Layered double perovskites are currently being investigated as emerging
halide-based materials for optoelectronic applications. Herein, we
present the synthesis of Cs4MnxCd1−xSb2Cl12 (0 ≤ x
≤ 1) nanocrystals (NCs). X-ray powder diffraction evidences the
retention of the same crystal structure for all the inspected
compositions; transmission electron microscopy revealed monodisperse
particles with a mean size between 10.7 nm and 12.7 nm. The absorption
spectra are mostly determined by transitions related to Sb3+, whereas Mn2+ induced a red emission in the 625–650 nm range. The photoluminescence emission intensity and position vary with the Mn2+ content and reach the maximum for the composition with x
= 0.12. Finally, we demonstrate that the photoluminescence quantum
yield of the latter NCs was increased from 0.3% to 3.9% through a
post-synthesis treatment with ammonium thiocyanate. The present work
expands the knowledge of colloidal layered double perovskite
nanocrystals, stimulating future investigations of this emerging class
of materials. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
in
Nanoscale
volume
14
issue
2
pages
7 pages
publisher
Royal Society of Chemistry
external identifiers
  • pmid:34913460
  • scopus:85122894081
ISSN
2040-3364
DOI
10.1039/d1nr06200j
language
English
LU publication?
no
additional info
Publisher Copyright: © The Royal Society of Chemistry.
id
1ae9b49c-b47e-4827-a414-aead68b064ae
date added to LUP
2023-01-17 11:51:49
date last changed
2024-04-18 08:20:25
@article{1ae9b49c-b47e-4827-a414-aead68b064ae,
  abstract     = {{Layered double perovskites are currently being investigated as emerging <br>
halide-based materials for optoelectronic applications. Herein, we <br>
present the synthesis of Cs<sub>4</sub>Mn<sub><em>x</em></sub>Cd<sub>1−<em>x</em></sub>Sb<sub>2</sub>Cl<sub>12</sub> (0 ≤ <em>x</em><br>
 ≤ 1) nanocrystals (NCs). X-ray powder diffraction evidences the <br>
retention of the same crystal structure for all the inspected <br>
compositions; transmission electron microscopy revealed monodisperse <br>
particles with a mean size between 10.7 nm and 12.7 nm. The absorption <br>
spectra are mostly determined by transitions related to Sb<sup>3+</sup>, whereas Mn<sup>2+</sup> induced a red emission in the 625–650 nm range. The photoluminescence emission intensity and position vary with the Mn<sup>2+</sup> content and reach the maximum for the composition with <em>x</em><br>
 = 0.12. Finally, we demonstrate that the photoluminescence quantum <br>
yield of the latter NCs was increased from 0.3% to 3.9% through a <br>
post-synthesis treatment with ammonium thiocyanate. The present work <br>
expands the knowledge of colloidal layered double perovskite <br>
nanocrystals, stimulating future investigations of this emerging class <br>
of materials.}},
  author       = {{Sartori, Emanuela and Campolucci, Marta and Baranov, Dmitry and Zeng, Min and Toso, Stefano and Divitini, Giorgio and Ferretti, Maurizio and Hens, Zeger and Manna, Liberato and Locardi, Federico}},
  issn         = {{2040-3364}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{305--311}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Nanoscale}},
  title        = {{Red-emissive nanocrystals of Cs<sub>4</sub>Mn<sub><i>x</i> </sub>Cd<sub>1-<i>x</i></sub>Sb<sub>2</sub>Cl<sub>12</sub> layered perovskites}},
  url          = {{http://dx.doi.org/10.1039/d1nr06200j}},
  doi          = {{10.1039/d1nr06200j}},
  volume       = {{14}},
  year         = {{2022}},
}