Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 10, Issue 10, Pages 3195-3211Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cy02561h
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Funding
- Australian Research Council [CE140100003]
- School of Chemical Engineering and Advanced Materials
- University of Adelaide
- Institute for Photonics and Advanced Sensing (IPAS)
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Spanish `Ministerio de Ciencia, Innovacion y Universidades' [RTI2018-094040-B-I00]
- Agency for Management of University and Research Grants [2017-SGR-1527]
- Catalan Institution for Research and Advanced Studies (ICREA) under the ICREA Academia Award
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platform material composed of 2D gold (Au) nanodot plasmonic single-lattices (Au-nD-PSLs) featuring tailor-engineered geometric features for visible-NIR light-driven enhanced photocatalysis is presented. Au-nD-PSLs efficiently harness incident visible-NIR electromagnetic waves to accelerate photo-chemical reactions by localized surface plasmon resonance (LSPR) effects. Au-nD-PSLs are fabricated by a straightforward, industrially scalable template-assisted approach, using nanopatterned aluminum substrates as templates. The method overcomes the constraints of direct writing lithography and allows Au-nD-PSLs to be transferred to arbitrary functional flexible substrates. Triangular lattice Au-nD-PSLs feature tunable and controllable characteristic LSPR bands across the visible spectrum. Strongly localized electromagnetic fields around Au-nD-PSLs are responsible for the outstanding photocatalytic performance of these plasmonic nanostructures, as demonstrated by finite-difference time-domain simulations and experimental observations. Our approach of rational engineering of LSPR effects in Au-nD-PSLs provides exciting opportunities to develop high-performing and reusable photocatalysts that harvest the visible-NIR spectrum for a broad range of optoelectronic and plasmonic applications.
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