Surface Lattice Plasmon Resonances by Direct In Situ Substrate Growth of Gold Nanoparticles in Ordered Arrays
| Autor: | Gail A. Vinnacombe‐Willson, Ylli Conti, Steven J. Jonas, Paul S. Weiss, Agustín Mihi, Leonardo Scarabelli |
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| Přispěvatelé: | Ministerio de Ciencia, Innovación y Universidades (España), Consejo Superior de Investigaciones Científicas (España), Fundación 'la Caixa', University of California, National Institute for Health and Care Research (US), Hyundai Hope On Wheels, National Science Foundation (US) |
| Rok vydání: | 2022 |
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| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | Precise arrangements of plasmonic nanoparticles on substrates are important for designing optoelectronics, sensors and metamaterials with rational electronic, optical and magnetic properties. Bottom-up synthesis offers unmatched control over morphology and optical response of individual plasmonic building blocks. Usually, the incorporation of nanoparticles made by bottom-up wet chemistry starts from batch synthesis of colloids, which requires time-consuming and hard-to-scale steps like ligand exchange and self-assembly. Herein, an unconventional bottom-up wet-chemical synthetic approach for producing gold nanoparticle ordered arrays is developed. Water-processable hydroxypropyl cellulose stencils facilitate the patterning of a reductant chemical ink on which nanoparticle growth selectively occurs. Arrays exhibiting lattice plasmon resonances in the visible region and near infrared (quality factors of >20) are produced following a rapid synthetic step ( The authors thank Camilla Dore for her advice and contributed expertise on the fabrication of HPC films. The authors extend their gratitude to Jose Mendoza Carreño for his assistance with the optical characterization of the gold nanoparticle arrays. This project had received funding from the Spanish Ministry of Science and Innovation through grants FUNFUTURE (CEX2019-000917-S), (FUNFUTURE, in the framework of the Spanish Severo Ochoa Centre of Excellence program) and PID2019-106860GB-I00 (HIGHN). L.S. and A.M. thank the Spanish National Research Council (CSIC) for funding via the I-LINK 2020 international travel grant, which facilitated international exchange period necessary for completion of this work. L.S. and Y.C. research is supported by the 2020 Post-doctoral Junior Leader-Incoming Fellowship by “la Caixa” Foundation (ID 100010434, fellow-ship code LCF/BQ/PI20/11760028). Y.C. acknowledges the auspices of the UAB material science doctoral program. G.A.V.W. thanks the UCLA graduate division for funding through the University of California Office of the President Dissertation Year Fellowship. S.J.J. acknowledges support from the National Institutes of Health (NIH) Common Fund through a NIH Director's Early Independence Award co-funded by the National Institute of Dental and Craniofacial Research and Office of the Director, NIH Grant DP5OD028181. S.J.J. and G.A.V.W. acknowledge support through a Scholar Award from the Hyundai Hope on Wheels Foundation for Pediatric Cancer Research. P.S.W. thanks the National Science Foundation for support through Grant #CHE-2004238. With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000917-S). |
| Databáze: | OpenAIRE |
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