ArticleACS applied materials & interfaces2025
Optimizing Catalyst Location within Nanostructured Photoelectrodes.
Article in ACS applied materials & interfaces, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Metal/Si Nanowire Arrays for Hot Electron Catalysis.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Engineering of Optoelectronic Devices for Renewable Energy Applications.Micromachines · 2026Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The influence of catalyst location within nanostructured photocathodes on conversion efficiency is reported. Highly uniform vertically aligned silicon nanowire (VA-SiNW) arrays prepared via colloidal lithography and metal-assisted chemical etching were used as a model-system photoelectrode for the hydrogen evolution reaction. Using three-dimensional electrochemical axial lithography (3DEAL), the Pt catalyst was located either at the top, center, or bottom of the SiNWs, or uniformly throughout the array. The SiNWs were spatioselectively passivated with an insulating coating to limit charge recombination at the silicon-electrolyte interface. Our results show that the most efficient catalyst position is the center of the SiNW, with an enhanced short-circuit photocurrent that is ca. 2 times and 2.9 times higher compared to top and uniform Pt distributions, respectively. This is attributed to better charge extraction in the nanowire center that mitigates losses due to charge recombination while optimizing light absorption within the SiNW, as revealed by three-dimensional electromagnetic simulations.
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Registered trials
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