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Synthesis of well-ordered functionalized silicon microwires using displacement talbot lithography for photocatalysis
Chemical Physics, Department of Chemistry, Lund University, Kemicentrum Naturvetarevägen 16, Lund, Sweden; NanoLund, Department of Physics, Lund University, Professorsgatan 1, Lund, Sweden.
Chemical Physics, Department of Chemistry, Lund University, Kemicentrum Naturvetarevägen 16, Lund, Sweden; Lund Institute of Advanced Neutron and X-ray Science, Lund University, Scheelevägen 19, Lund, Sweden; NanoLund, Department of Physics, Lund University, Professorsgatan 1, Lund, Sweden.
NanoLund, Department of Physics, Lund University, Professorsgatan 1, Lund, Sweden; Solid State Physics, Department of Physics, Lund University, Professorsgatan 1, Lund, Sweden.
NanoLund, Department of Physics, Lund University, Professorsgatan 1, Lund, Sweden; Solid State Physics, Department of Physics, Lund University, Professorsgatan 1, Lund, Sweden.
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2024 (English)In: ACS Omega, E-ISSN 2470-1343, Vol. 9, no 18, p. 20623-20628Article in journal (Refereed) Published
Abstract [en]

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.
Place, publisher, year, edition, pages
American Chemical Society (ACS), 2024. Vol. 9, no 18, p. 20623-20628
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Materials Chemistry
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URN: urn:nbn:se:umu:diva-224249DOI: 10.1021/acsomega.4c03039ISI: 001227811900001Scopus ID: 2-s2.0-85191880373OAI: oai:DiVA.org:umu-224249DiVA, id: diva2:1858018
Funder
The Kempe Foundations, JCK3140Swedish Research Council, 2020-04995Swedish Energy Agency, 50709-1Swedish Research Council, 2021-05207Swedish Research Council, 2021-04629Available from: 2024-05-15 Created: 2024-05-15 Last updated: 2025-04-24Bibliographically approved

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Wågberg, Thomas

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