Plasmonic Nanohole Arrays with Enhanced Visible Light Photoelectrocatalytic Activity
نویسندگان
چکیده
Metallic nanohole arrays exciting both surface plasmon polariton (SPP) and localized resonance (LSPR) in a single thin film have sparked considerable interest the field of plasmonics. To exert their full potential for generation hot electrons visible light, we bury an Au array (AuNHA) under TiO2 layer decorate Pt nanoparticles randomly on to form Pt/TiO2/AuNHA nanocomposite. As compared Pt/TiO2/Au film, sample with 90 nm hole diameter shows enhancement 4.1 folds photocurrent density, 14.7 peak incident photon-to-current conversion efficiency, 9.4 degradation methyl orange. Moreover, numerical simulations are conducted analyze contributions SPP LSPR effects at different wavelengths. This work is first study AuNHAs fully covered by provides unique design photoelectrodes solar photocatalysis applications.
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ژورنال
عنوان ژورنال: ACS Photonics
سال: 2022
ISSN: ['2330-4022']
DOI: https://doi.org/10.1021/acsphotonics.1c01684