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Free-Standing Metal Halide Perovskite Nanowire Arrays with Blue-Green Heterostructures

Zhang, Zhaojun LU ; Lamers, Nils LU ; Sun, Chen LU ; Hetherington, Crispin LU orcid ; Scheblykin, Ivan G. LU orcid and Wallentin, Jesper LU (2022) In Nano Letters 22(7). p.2941-2947
Abstract

Vertically aligned metal halide perovskite (MHP) nanowires are promising for various optoelectronic applications, which can be further enhanced by heterostructures. However, present methods to obtain free-standing vertically aligned MHP nanowire arrays and heterostructures lack the scalability needed for applications. We use a low-temperature solution process to prepare free-standing vertically aligned green-emitting CsPbBr3 nanowires from anodized aluminum oxide templates. The length is controlled from 1 to 20 μm by the precursor amount. The nanowires are single-crystalline and exhibit excellent photoluminescence, clear light guiding and high photoconductivity with a responsivity of 1.9 A/W. We demonstrate blue-green heterostructured... (More)

Vertically aligned metal halide perovskite (MHP) nanowires are promising for various optoelectronic applications, which can be further enhanced by heterostructures. However, present methods to obtain free-standing vertically aligned MHP nanowire arrays and heterostructures lack the scalability needed for applications. We use a low-temperature solution process to prepare free-standing vertically aligned green-emitting CsPbBr3 nanowires from anodized aluminum oxide templates. The length is controlled from 1 to 20 μm by the precursor amount. The nanowires are single-crystalline and exhibit excellent photoluminescence, clear light guiding and high photoconductivity with a responsivity of 1.9 A/W. We demonstrate blue-green heterostructured nanowire arrays by converting the free-standing part of the nanowires to CsPbCl1.1Br1.9 in an anion exchange process. Our results demonstrate a scalable, self-aligned, and lithography-free approach to achieve high quality free-standing MHP nanowires arrays and heterostructures, offering new possibilities for optoelectronic applications.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
free-standing nanowires arrays, metal halide perovskite, nanowire heterostructure arrays, vapor anion exchange
in
Nano Letters
volume
22
issue
7
pages
2941 - 2947
publisher
The American Chemical Society (ACS)
external identifiers
  • pmid:35325539
  • scopus:85127640827
ISSN
1530-6984
DOI
10.1021/acs.nanolett.2c00137
language
English
LU publication?
yes
additional info
Funding Information: This research was funded by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement 801847). This project also has the funding support from the Olle Engkvist foundation, NanoLund, and Marie Sklodowska Curie Actions Cofund, Project INCA 600398. This work was partly funded by the Swedish Research Council (2020-03530) and Knut and Alice Wallenberg foundation (2016.0059). The Research Infrastructure Fellow program from the Swedish Foundation for Strategic Research also provided support for this research. Publisher Copyright: © 2022 The Authors. Published by American Chemical Society.
id
9ace2cbf-8bdc-4650-916c-f710e50ae808
date added to LUP
2022-04-22 08:26:12
date last changed
2024-07-05 20:32:07
@article{9ace2cbf-8bdc-4650-916c-f710e50ae808,
  abstract     = {{<p>Vertically aligned metal halide perovskite (MHP) nanowires are promising for various optoelectronic applications, which can be further enhanced by heterostructures. However, present methods to obtain free-standing vertically aligned MHP nanowire arrays and heterostructures lack the scalability needed for applications. We use a low-temperature solution process to prepare free-standing vertically aligned green-emitting CsPbBr3 nanowires from anodized aluminum oxide templates. The length is controlled from 1 to 20 μm by the precursor amount. The nanowires are single-crystalline and exhibit excellent photoluminescence, clear light guiding and high photoconductivity with a responsivity of 1.9 A/W. We demonstrate blue-green heterostructured nanowire arrays by converting the free-standing part of the nanowires to CsPbCl1.1Br1.9 in an anion exchange process. Our results demonstrate a scalable, self-aligned, and lithography-free approach to achieve high quality free-standing MHP nanowires arrays and heterostructures, offering new possibilities for optoelectronic applications. </p>}},
  author       = {{Zhang, Zhaojun and Lamers, Nils and Sun, Chen and Hetherington, Crispin and Scheblykin, Ivan G. and Wallentin, Jesper}},
  issn         = {{1530-6984}},
  keywords     = {{free-standing nanowires arrays; metal halide perovskite; nanowire heterostructure arrays; vapor anion exchange}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{7}},
  pages        = {{2941--2947}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Nano Letters}},
  title        = {{Free-Standing Metal Halide Perovskite Nanowire Arrays with Blue-Green Heterostructures}},
  url          = {{http://dx.doi.org/10.1021/acs.nanolett.2c00137}},
  doi          = {{10.1021/acs.nanolett.2c00137}},
  volume       = {{22}},
  year         = {{2022}},
}