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Formation and Stability of Cs2SnBr6 Perovskite Nanocrystals from CsSn2Br5 Nanocubes

Liu, Maning LU orcid ; Abodya, Mohamed ; Dai, Weisi ; Kawawaki, Tokuhisa ; Sato, Ryota ; Saruyama, Masaki ; Teranishi, Toshiharu and Tachibana, Yasuhiro (2022) In Journal of Photopolymer Science and Technology 35(3). p.199-204
Abstract

Lead-free Sn(II) based, CsSn2Br5, perovskite nanocubes were synthesized using a modified hot-injection method by tuning the injection temperature and reaction conditions. The formation of Sn(IV) based, Cs2SnBr6, perovskite nanocrystals (PNCs) from CsSn2Br5 perovskite nanocubes was observed. X-ray diffraction measurements revealed that oxygen or water molecules in air gradually react with CsSn2Br5 perovskite nanocubes to form Cs2SnBr6 NCs. The stability of Cs2SnBr6 NCs was monitored by time-dependent absorption measurements. Both oxygen and water molecules react with the Cs2SnBr6 NCs to... (More)

Lead-free Sn(II) based, CsSn2Br5, perovskite nanocubes were synthesized using a modified hot-injection method by tuning the injection temperature and reaction conditions. The formation of Sn(IV) based, Cs2SnBr6, perovskite nanocrystals (PNCs) from CsSn2Br5 perovskite nanocubes was observed. X-ray diffraction measurements revealed that oxygen or water molecules in air gradually react with CsSn2Br5 perovskite nanocubes to form Cs2SnBr6 NCs. The stability of Cs2SnBr6 NCs was monitored by time-dependent absorption measurements. Both oxygen and water molecules react with the Cs2SnBr6 NCs to degrade, however water molecules appears largely to react with the NCs. The stability has been improved by dispersing the Cs2SnBr6 NCs in degassed anhydrous solvent.

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author
; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CsSnBr, Perovskite nanocrystal, Stability
in
Journal of Photopolymer Science and Technology
volume
35
issue
3
pages
6 pages
publisher
Tokai University
external identifiers
  • scopus:85151960535
ISSN
0914-9244
DOI
10.2494/photopolymer.35.199
language
English
LU publication?
no
id
d2cc8030-18dd-42a2-b131-7b7ae29cae25
date added to LUP
2023-08-24 12:08:36
date last changed
2023-08-25 09:25:19
@article{d2cc8030-18dd-42a2-b131-7b7ae29cae25,
  abstract     = {{<p>Lead-free Sn(II) based, CsSn<sub>2</sub>Br<sub>5</sub>, perovskite nanocubes were synthesized using a modified hot-injection method by tuning the injection temperature and reaction conditions. The formation of Sn(IV) based, Cs<sub>2</sub>SnBr<sub>6</sub>, perovskite nanocrystals (PNCs) from CsSn<sub>2</sub>Br<sub>5</sub> perovskite nanocubes was observed. X-ray diffraction measurements revealed that oxygen or water molecules in air gradually react with CsSn<sub>2</sub>Br<sub>5</sub> perovskite nanocubes to form Cs<sub>2</sub>SnBr<sub>6</sub> NCs. The stability of Cs<sub>2</sub>SnBr<sub>6</sub> NCs was monitored by time-dependent absorption measurements. Both oxygen and water molecules react with the Cs<sub>2</sub>SnBr<sub>6</sub> NCs to degrade, however water molecules appears largely to react with the NCs. The stability has been improved by dispersing the Cs<sub>2</sub>SnBr<sub>6</sub> NCs in degassed anhydrous solvent.</p>}},
  author       = {{Liu, Maning and Abodya, Mohamed and Dai, Weisi and Kawawaki, Tokuhisa and Sato, Ryota and Saruyama, Masaki and Teranishi, Toshiharu and Tachibana, Yasuhiro}},
  issn         = {{0914-9244}},
  keywords     = {{CsSnBr; Perovskite nanocrystal; Stability}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{199--204}},
  publisher    = {{Tokai University}},
  series       = {{Journal of Photopolymer Science and Technology}},
  title        = {{Formation and Stability of Cs<sub>2</sub>SnBr<sub>6</sub> Perovskite Nanocrystals from CsSn<sub>2</sub>Br<sub>5</sub> Nanocubes}},
  url          = {{http://dx.doi.org/10.2494/photopolymer.35.199}},
  doi          = {{10.2494/photopolymer.35.199}},
  volume       = {{35}},
  year         = {{2022}},
}