Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Controlled Ligand-Free Growth of Free-Standing CsPbBr3 Perovskite Nanowires

Huang, Ziyun LU ; Zhang, Zhaojun LU ; Lamers, Nils LU ; Baranov, Dmitry LU orcid and Wallentin, Jesper LU (2024) In ACS Omega 9(49). p.48390-48396
Abstract

Metal halide perovskite nanowires are widely studied due to their unique electronic and optical characteristics, making them promising for light emitting and detection applications. We developed a ligand-free method to grow vertically aligned free-standing CsPbBr3 nanowires from anodized aluminum oxide nanopore substrates. Here, we investigate the growth process using in situ microscopy with ultraviolet and visible light excitation, revealing a highly dynamic process with pronounced fluorescence at locations where high-density free-standing nanowires could be found. The yield of the growth is strongly improved by using a growth reactor with controlled N2 flow, increasing from 17 to 60%. We systematically... (More)

Metal halide perovskite nanowires are widely studied due to their unique electronic and optical characteristics, making them promising for light emitting and detection applications. We developed a ligand-free method to grow vertically aligned free-standing CsPbBr3 nanowires from anodized aluminum oxide nanopore substrates. Here, we investigate the growth process using in situ microscopy with ultraviolet and visible light excitation, revealing a highly dynamic process with pronounced fluorescence at locations where high-density free-standing nanowires could be found. The yield of the growth is strongly improved by using a growth reactor with controlled N2 flow, increasing from 17 to 60%. We systematically investigated the growth dependence on the temperature and N2 flow rate and identified optimal parameters at 70 °C and 0.8 L/min, respectively. The improved control over the growth of free-standing nanowires expands opportunities for their integration into optoelectronic devices.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
ACS Omega
volume
9
issue
49
pages
48390 - 48396
publisher
The American Chemical Society (ACS)
external identifiers
  • pmid:39676962
  • scopus:85210277661
ISSN
2470-1343
DOI
10.1021/acsomega.4c06646
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2024 The Authors. Published by American Chemical Society.
id
bb6273c1-45b7-47a2-99cc-8c0ba6968eb0
date added to LUP
2024-12-09 08:17:00
date last changed
2025-07-22 01:58:33
@article{bb6273c1-45b7-47a2-99cc-8c0ba6968eb0,
  abstract     = {{<p>Metal halide perovskite nanowires are widely studied due to their unique electronic and optical characteristics, making them promising for light emitting and detection applications. We developed a ligand-free method to grow vertically aligned free-standing CsPbBr<sub>3</sub> nanowires from anodized aluminum oxide nanopore substrates. Here, we investigate the growth process using in situ microscopy with ultraviolet and visible light excitation, revealing a highly dynamic process with pronounced fluorescence at locations where high-density free-standing nanowires could be found. The yield of the growth is strongly improved by using a growth reactor with controlled N<sub>2</sub> flow, increasing from 17 to 60%. We systematically investigated the growth dependence on the temperature and N<sub>2</sub> flow rate and identified optimal parameters at 70 °C and 0.8 L/min, respectively. The improved control over the growth of free-standing nanowires expands opportunities for their integration into optoelectronic devices.</p>}},
  author       = {{Huang, Ziyun and Zhang, Zhaojun and Lamers, Nils and Baranov, Dmitry and Wallentin, Jesper}},
  issn         = {{2470-1343}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{49}},
  pages        = {{48390--48396}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Omega}},
  title        = {{Controlled Ligand-Free Growth of Free-Standing CsPbBr<sub>3</sub> Perovskite Nanowires}},
  url          = {{http://dx.doi.org/10.1021/acsomega.4c06646}},
  doi          = {{10.1021/acsomega.4c06646}},
  volume       = {{9}},
  year         = {{2024}},
}