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Synthesis of Well-Ordered Functionalized Silicon Microwires Using Displacement Talbot Lithography for Photocatalysis

Eriksson, Axl LU ; Kawde, Anurag LU ; Hrachowina, Lukas LU ; McKibbin, Sarah R. LU orcid ; Shi, Qi LU ; Borgström, Magnus T. LU ; Wågberg, Thomas ; Pullerits, Tönu LU and Uhlig, Jens LU (2024) In ACS Omega 9(18). p.20623-20628
Abstract

Metal-assisted chemical etching (MACE) is a cheap and scalable method that is commonly used to obtain silicon nano- or microwires but lacks spatial control. Herein, we present a synthesis method for producing vertical and highly periodic silicon microwires, using displacement Talbot lithography before wet etching with MACE. The functionalized periodic silicon microwires show 65% higher PEC performance and 2.3 mA/cm2 higher net photocurrent at 0 V compared to functionalized, randomly distributed microwires obtained by conventional MACE at the same potentials.

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author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
ACS Omega
volume
9
issue
18
pages
6 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85191880373
ISSN
2470-1343
DOI
10.1021/acsomega.4c03039
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2024 The Authors. Published by American Chemical Society.
id
626676b4-a841-434a-aa16-5eaa85015b3c
date added to LUP
2024-05-09 08:03:47
date last changed
2024-05-13 11:32:15
@article{626676b4-a841-434a-aa16-5eaa85015b3c,
  abstract     = {{<p>Metal-assisted chemical etching (MACE) is a cheap and scalable method that is commonly used to obtain silicon nano- or microwires but lacks spatial control. Herein, we present a synthesis method for producing vertical and highly periodic silicon microwires, using displacement Talbot lithography before wet etching with MACE. The functionalized periodic silicon microwires show 65% higher PEC performance and 2.3 mA/cm<sup>2</sup> higher net photocurrent at 0 V compared to functionalized, randomly distributed microwires obtained by conventional MACE at the same potentials.</p>}},
  author       = {{Eriksson, Axl and Kawde, Anurag and Hrachowina, Lukas and McKibbin, Sarah R. and Shi, Qi and Borgström, Magnus T. and Wågberg, Thomas and Pullerits, Tönu and Uhlig, Jens}},
  issn         = {{2470-1343}},
  language     = {{eng}},
  number       = {{18}},
  pages        = {{20623--20628}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Omega}},
  title        = {{Synthesis of Well-Ordered Functionalized Silicon Microwires Using Displacement Talbot Lithography for Photocatalysis}},
  url          = {{http://dx.doi.org/10.1021/acsomega.4c03039}},
  doi          = {{10.1021/acsomega.4c03039}},
  volume       = {{9}},
  year         = {{2024}},
}