DataVXACS Applied Nano MaterialsPaper
journal article·2023-04-14

Integrated Plasmonic Gold Nanoparticle Dimer Array for Sustainable Solar Water Disinfection

Daniel Krueger, Ashley Graves, Yanan Chu, Jianhan Pan, Somin Eunice Lee, Younggeun Park

ACS Applied Nano Materials· Volume 6· Issue 7
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Source abstract

Abstract

Plasmonic nanostructures, functioning as nano-antenna reactors to highly focus light and efficiently convert it into thermal/chemical energy, have a significant potential for sustainable solar water disinfection (SODIS). A high-density plasmonic nanogap-based reactor array opens a way of maximizing the photothermal effect, but achieving uniformity and large density in such a technology while scaling up remains challenging. In this study, we provide an integrative plasmonic dimer array (hPDA) that is uniform and has high density ensuring significantly enhanced SODIS performance. The hPDA is constructed by a combined fabrication of the self-assembled monolayer and block copolymer lithography approaches. This combination leads to a two-dimensional hexagonal array of the Au dimer structures consisting of a 1.3 nm nanogap. The uniformity and high density of nanogaps of the hPDA result in the physically and optically stabilized dimer array, which allows strong light focusing and a rapid and highly efficient harvesting of photothermal energy in the visible region. Finally, the integrated hPDA with an optofluidic reactor enables 5-fold enhanced Escherichia coli ( E. coli ) disinfection. We anticipate that the hPDA will be useful in the scalable sustainable energy and environmental process that converts solar energy.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Solar-Powered Water Purification Methods · Gold and Silver Nanoparticles Synthesis and Applications · Metamaterials and Metasurfaces Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical Engineering, University of Michigan at Ann Arbor, Ann Arbor, Michigan 48109, United States

Department of Chemistry, University of Michigan at Ann Arbor, Ann Arbor, Michigan 48109, United States

Department of Electrical & Computer Engineering, University of Michigan at Ann Arbor, Ann Arbor, Michigan 48109, United States

Department of Biomedical Engineering, University of Michigan at Ann Arbor, Ann Arbor, Michigan 48109, United States

Department of Applied Physics, University of Michigan at Ann Arbor, Ann Arbor, Michigan 48109, United States

Macromolecular Science & Engineering Program, University of Michigan at Ann Arbor, Ann Arbor, Michigan 48109, United States

Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States

Department of Mechanical Engineering, University of Michigan at Ann Arbor, Ann Arbor, Michigan 48109, United States

Weil Institute for Critical Care Research and Innovation, University of Michigan, Ann Arbor, Michigan 48109, United States

Funding

University of Michigan · Air Force Office of Scientific Research · Division of Electrical, Communications and Cyber Systems · MCubed, University of Michigan

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