journal article·2021-03-01Open access

Large-Scale Soft-Lithographic Patterning of Plasmonic Nanoparticles

Naihao Chiang, Leonardo Scarabelli, Gail A. Vinnacombe-Willson, Luis A. Pérez, Camilla Dore, Agustín Mihi, Steven J. Jonas, Paul S. Weiss

ACS Materials Letters· Volume 3· Issue 3

Abstract

Micro- and nanoscale patterned monolayers of plasmonic nanoparticles were fabricated by combining concepts from colloidal chemistry, self-assembly, and subtractive soft lithography. Leveraging chemical interactions between the capping ligands of pre-synthesized gold colloids and a polydimethylsiloxane stamp, we demonstrated patterning gold nanoparticles over centimeter-scale areas with a variety of micro- and nanoscale geometries, including islands, lines, and chiral structures (e.g., square spirals). By successfully achieving nanoscale manipulation over a wide range of substrates and patterns, we established a powerful and straightforward strategy, nanoparticle chemical lift-off lithography (NP-CLL), for the economical and scalable fabrication of functional plasmonic materials with colloidal nanoparticles as building blocks, offering a transformative solution for designing next-generation plasmonic technologies.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Nanofabrication and Lithography Techniques · Plasmonic and Surface Plasmon Research · Optical Coatings and Gratings

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

Affiliations

Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States

California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States

Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra, Spain

Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California 90095, United States

Children’s Discovery and Innovation Institute, University of California, Los Angeles, Los Angeles, California 90095, United States

Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, California 90095, United States

Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States

Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States

Funding

Division of Chemistry · European Regional Development Fund · National Institute of Dental and Craniofacial Research · Ministerio de Econom?a y Competitividad · National Institute of Biomedical Imaging and Bioengineering · ?la Caixa? Foundation · H2020 Marie Sklodowska-Curie Actions · Alex's Lemonade Stand Foundation for Childhood Cancer · H2020 European Research Council · Hyundai Hope On Wheels · Agencia Estatal de Investigaci?n

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