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http://dx.doi.org/10.5762/KAIS.2017.18.11.88

The Study of Surface Plasmonic Bands Using Block Copolymer Nanopatterns  

Yoo, Seung Min (Environmental & Chemical Industry, Ulsan College)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.11, 2017 , pp. 88-93 More about this Journal
Abstract
It is important to develop a simple method oftuning localized surface plasmon resonance(LSPR) properties, due to their numerous applications. In addition, the careful examination of the shape, size and combination of metal nanoparticles is useful for understanding the relation between the LSPR properties and metal nanostructures. This article describes the dependence of theLSPR properties on the arrays of metal nanoparticles obtained from a block copolymer(BCP) micellar thin film. Firstly, two different Au nanostructures, having a dot and ring shape, were fabricated using conventional block copolymer micelle lithography. Then, Ag was plated on the Au nanostructures through the silver mirror reaction technique to obtain Au/Ag bimetallic nanostructures. During the production of these metallic nanostructures, the processing factors, such as the pre-treatment by ethanol, silver mirror reaction time and removal or not of the BCP, were varied. Once the Au nanoparticles were synthesized, Ag was properly plated on the Au, providing two distinguishable characteristic plasmonic bands at around 525nm for Au and around 420nm for Ag, as confirmed bythe UV-vis measurements. However, when a small amount of Au seed nanoparticles, which accelerate the Ag plating speed,was formed by usinga block copolymer with a relatively highmolecular weight, all of the Au surfaces were fully covered by Ag during the silver mirror reaction, showing only the characteristic peak for Ag at around 420nm. The Ag plating technique on Au nanoparticles pre-synthesized from a block copolymer is useful to study the LSPR properties carefully.
Keywords
Au/Ag bimetallic nanoparticles; block copolymer micelle lithography; block copolymer nanopattern; localized surface plasmon band; silver mirror reaction;
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1 Hahn B, Wendorff J, and Yoon DY, "Dielectric relaxation of the crystal-amorphous interphase in poly(vinylidene fluoride) and its blends with poly(methyl methacrylate)", Macromolecules vol. 18, no. 4, pp. 718-721, 1985. DOI: https://doi.org/10.1021/ma00146a024   DOI
2 Liz-Marzan LM, "Tailoring Surface Plasmons through the Morphology and Assembly of Metal Nanoparticles", Langmuir vol. 22, no. 1, pp. 32-41, 2006. DOI: https://doi.org/10.1021/la0513353   DOI
3 Preciado-Flores S, Wang D, Wheeler DA, Newhouse R, Hensel JK, Schwartzberg A, Wang L, Zhu J, Barboza-Florese M, and Zhang JZ, "Highly reproducible synthesis of hollow gold nanospheres with near infrared surface plasmon absorption using PVP as stabilizing agent " J. Mater. Chem. vol. 21, no. 7, pp. 2344-2350, 2011. DOI: https://doi.org/10.1039/C0JM03690K   DOI
4 Aherne D, Ledwith DM, Gara M, and Kelly JM, "Optical properties and growth aspects of silver nanoprisms produced by a highly reproducible and rapid synthesis at room temperature" Adv. Func. Mater. vol. 18, no. 14, pp. 2005-2016, 2008. DOI: https://doi.org/10.1002/adfm.200800233   DOI
5 Kim UJ, Yoo S, Park Y, Shin M, Kim J, Jeong H, Baik CW, Roh YG, Lee J, Im K, Son H, Hwang S, Lee CW, and Park S, "Plasmon-Assisted Designable Multi-Resonance Photodetection by Graphene via Nanopatterning of Block Copolymer" ACS Photonics vol. 2, no. 4, pp. 506-514, 2015. DOI: https://doi.org/10.1021/ph500412p   DOI
6 Rosi NL, Mirkin CA, "Nanostructures in biodiagnostics" Chem. Rev. vol. 105, no. 4, pp. 1547-1562, 2005. DOI: https://doi.org/10.1021/cr030067f   DOI
7 Wang Y, Li F, "An Emerging Pore-Making Strategy: Confined Swelling-Induced Pore Generation in Block Copolymer Materials", Adv. Mater vol. 23, no. 19, pp. 2134-2148, 2011. DOI: https://doi.org/10.1002/adma.201004022   DOI
8 Yoo S, Shin M, Kim UJ, Lee CW, Park S, "Block-Copolymer-Based Au/Ag Nanoring Arrays with Widely Tunable Surface Plasmon Resonance", Sci. of Adv. Mater. vol. 7, no. 5, pp. 842-847, 2015. DOI: https://doi.org/10.1166/sam.2015.1871   DOI