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Tuning Localized Surface Plasmon Resonances by Self-Assembly in Multi- Metal Nanostructures

Research output: Other conference contributionPaper, poster or abstractScientific

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Tuning Localized Surface Plasmon Resonances by Self-Assembly in Multi- Metal Nanostructures. / Hulkkonen, Hanna; Salminen, Turkka; Rasappa, Sozaraj; Niemi, Tapio.

2017. Paper presented at International Symposium on DSA, Chicago, United States.

Research output: Other conference contributionPaper, poster or abstractScientific

Harvard

Hulkkonen, H, Salminen, T, Rasappa, S & Niemi, T 2017, 'Tuning Localized Surface Plasmon Resonances by Self-Assembly in Multi- Metal Nanostructures' Paper presented at International Symposium on DSA, Chicago, United States, 17/09/17 - 19/09/17, .

APA

Hulkkonen, H., Salminen, T., Rasappa, S., & Niemi, T. (2017). Tuning Localized Surface Plasmon Resonances by Self-Assembly in Multi- Metal Nanostructures. Paper presented at International Symposium on DSA, Chicago, United States.

Vancouver

Hulkkonen H, Salminen T, Rasappa S, Niemi T. Tuning Localized Surface Plasmon Resonances by Self-Assembly in Multi- Metal Nanostructures. 2017. Paper presented at International Symposium on DSA, Chicago, United States.

Author

Hulkkonen, Hanna ; Salminen, Turkka ; Rasappa, Sozaraj ; Niemi, Tapio. / Tuning Localized Surface Plasmon Resonances by Self-Assembly in Multi- Metal Nanostructures. Paper presented at International Symposium on DSA, Chicago, United States.

Bibtex - Download

@conference{d3a41dfd41a3490596740f78b96a0dd7,
title = "Tuning Localized Surface Plasmon Resonances by Self-Assembly in Multi- Metal Nanostructures",
abstract = "Block copolymers together with conventional nanolithography offer an intriguing possibility to realize complex photonic nanostructures that would otherwise be impossible or extremely difficult to manufacture. Sub-wavelength nanostructures made of noble metals exhibit localized surface plasmon resonances that can be tailored by tuning the geometry of the structures. We demonstrate that combining plasmonic nanoarrays with block copolymer self-assembly allows realization of multi-metal structures that display altered optical behavior. A high speed electron-beam lithography technique (Dots-On-The-Fly) was used to fabricate arrays of thin, plasmonic gold structures, which then acted as a directing template for the self-assembly of asymmetric poly(styrene-b-2-vinyl pyridine) (PS-P2VP). Solvothermal annealing resulted in the PS-P2VP assembling in the gap regions of the plasmonic structures. The P2VP domains could then be converted into a variety of metals such as Au, Ag or Pt to populate the gap with plasmonic nanoparticles. 3D and 2D computational modeling was used to estimate the effects of geometry and material combinations on the far field spectrum and the local field-enhancement in the gap. Self-assembled multimaterial plasmonic devices have various applications in near field sensing, nonlinear optical interactions and photocatalysis.",
author = "Hanna Hulkkonen and Turkka Salminen and Sozaraj Rasappa and Tapio Niemi",
year = "2017",
month = "9",
day = "17",
language = "English",
note = "International Symposium on DSA, DSA2017 ; Conference date: 17-09-2017 Through 19-09-2017",
url = "http://www.dsasymposium.org/",

}

RIS (suitable for import to EndNote) - Download

TY - CONF

T1 - Tuning Localized Surface Plasmon Resonances by Self-Assembly in Multi- Metal Nanostructures

AU - Hulkkonen, Hanna

AU - Salminen, Turkka

AU - Rasappa, Sozaraj

AU - Niemi, Tapio

PY - 2017/9/17

Y1 - 2017/9/17

N2 - Block copolymers together with conventional nanolithography offer an intriguing possibility to realize complex photonic nanostructures that would otherwise be impossible or extremely difficult to manufacture. Sub-wavelength nanostructures made of noble metals exhibit localized surface plasmon resonances that can be tailored by tuning the geometry of the structures. We demonstrate that combining plasmonic nanoarrays with block copolymer self-assembly allows realization of multi-metal structures that display altered optical behavior. A high speed electron-beam lithography technique (Dots-On-The-Fly) was used to fabricate arrays of thin, plasmonic gold structures, which then acted as a directing template for the self-assembly of asymmetric poly(styrene-b-2-vinyl pyridine) (PS-P2VP). Solvothermal annealing resulted in the PS-P2VP assembling in the gap regions of the plasmonic structures. The P2VP domains could then be converted into a variety of metals such as Au, Ag or Pt to populate the gap with plasmonic nanoparticles. 3D and 2D computational modeling was used to estimate the effects of geometry and material combinations on the far field spectrum and the local field-enhancement in the gap. Self-assembled multimaterial plasmonic devices have various applications in near field sensing, nonlinear optical interactions and photocatalysis.

AB - Block copolymers together with conventional nanolithography offer an intriguing possibility to realize complex photonic nanostructures that would otherwise be impossible or extremely difficult to manufacture. Sub-wavelength nanostructures made of noble metals exhibit localized surface plasmon resonances that can be tailored by tuning the geometry of the structures. We demonstrate that combining plasmonic nanoarrays with block copolymer self-assembly allows realization of multi-metal structures that display altered optical behavior. A high speed electron-beam lithography technique (Dots-On-The-Fly) was used to fabricate arrays of thin, plasmonic gold structures, which then acted as a directing template for the self-assembly of asymmetric poly(styrene-b-2-vinyl pyridine) (PS-P2VP). Solvothermal annealing resulted in the PS-P2VP assembling in the gap regions of the plasmonic structures. The P2VP domains could then be converted into a variety of metals such as Au, Ag or Pt to populate the gap with plasmonic nanoparticles. 3D and 2D computational modeling was used to estimate the effects of geometry and material combinations on the far field spectrum and the local field-enhancement in the gap. Self-assembled multimaterial plasmonic devices have various applications in near field sensing, nonlinear optical interactions and photocatalysis.

M3 - Paper, poster or abstract

ER -