Fabrication of large area homogeneous metallic nanostructures for optical sensing using colloidal lithography

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We propose a simple and reproducible method for fabricating large area metal films with inter-connected nanostructures using a combination of colloidal lithography, metal deposition and a template stripping technique. The method is generic in the sense that it is possible to produce a variety of nanostructures and the corresponding inverted nanostructure in a metal film. Within plasmonics this feature opens up obvious possibilities to design and fabricate substrates with specific and tailored optical properties applicable in optical sensing platforms. In this report the method has been employed to fabricate metal films with inter-connected nanostructures consisting of either partial spherical shells or the inverted structures: spherical cavities. The substrates are characterized by optical reflectance and transmittance spectroscopy. We demonstrate, in the case of partial spherical shells, the possibility of tuning the localized surface plasmon resonances which is a desirable option when applying the substrates in e.g. surface-enhanced Raman spectroscopy. Additionally, it is demonstrated that the nanocavities exhibit distinct sensitivity with respect to the refractive index of the cavity thus verifying the potential applicability of the imprinted cavities as highly localized refractive index sensors in e.g. bioscience.
Original languageEnglish
JournalMicroelectronic Engineering
Volume87
Issue number5-8
Pages (from-to)1471–1474
Number of pages4
ISSN0167-9317
DOIs
Publication statusPublished - 2010

Fingerprint

metal films
Lithography
Nanostructures
lithography
Metals
spherical shells
Fabrication
cavities
fabrication
refractivity
Refractive index
Substrates
stripping
surface plasmon resonance
transmittance
Surface plasmon resonance
templates
platforms
Raman spectroscopy
tuning

Keywords

  • Colloidal lithography; Metallic nanostructures; Optical sensing; Plasmonics

Cite this

@article{6457bae022aa11dfba21000ea68e967b,
title = "Fabrication of large area homogeneous metallic nanostructures for optical sensing using colloidal lithography",
abstract = "We propose a simple and reproducible method for fabricating large area metal films with inter-connected nanostructures using a combination of colloidal lithography, metal deposition and a template stripping technique. The method is generic in the sense that it is possible to produce a variety of nanostructures and the corresponding inverted nanostructure in a metal film. Within plasmonics this feature opens up obvious possibilities to design and fabricate substrates with specific and tailored optical properties applicable in optical sensing platforms. In this report the method has been employed to fabricate metal films with inter-connected nanostructures consisting of either partial spherical shells or the inverted structures: spherical cavities. The substrates are characterized by optical reflectance and transmittance spectroscopy. We demonstrate, in the case of partial spherical shells, the possibility of tuning the localized surface plasmon resonances which is a desirable option when applying the substrates in e.g. surface-enhanced Raman spectroscopy. Additionally, it is demonstrated that the nanocavities exhibit distinct sensitivity with respect to the refractive index of the cavity thus verifying the potential applicability of the imprinted cavities as highly localized refractive index sensors in e.g. bioscience.",
keywords = "Colloidal lithography; Metallic nanostructures; Optical sensing; Plasmonics",
author = "Eriksen, {Ren{\'e} Lynge} and Anders Pors and Jes Dreier and Simonsen, {Adam Cohen} and Ole Albrektsen",
year = "2010",
doi = "10.1016/j.mee.2009.11.094",
language = "English",
volume = "87",
pages = "1471–1474",
journal = "Microelectronic Engineering",
issn = "0167-9317",
publisher = "Elsevier",
number = "5-8",

}

Fabrication of large area homogeneous metallic nanostructures for optical sensing using colloidal lithography. / Eriksen, René Lynge; Pors, Anders; Dreier, Jes ; Simonsen, Adam Cohen; Albrektsen, Ole.

In: Microelectronic Engineering, Vol. 87, No. 5-8, 2010, p. 1471–1474.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Fabrication of large area homogeneous metallic nanostructures for optical sensing using colloidal lithography

AU - Eriksen, René Lynge

AU - Pors, Anders

AU - Dreier, Jes

AU - Simonsen, Adam Cohen

AU - Albrektsen, Ole

PY - 2010

Y1 - 2010

N2 - We propose a simple and reproducible method for fabricating large area metal films with inter-connected nanostructures using a combination of colloidal lithography, metal deposition and a template stripping technique. The method is generic in the sense that it is possible to produce a variety of nanostructures and the corresponding inverted nanostructure in a metal film. Within plasmonics this feature opens up obvious possibilities to design and fabricate substrates with specific and tailored optical properties applicable in optical sensing platforms. In this report the method has been employed to fabricate metal films with inter-connected nanostructures consisting of either partial spherical shells or the inverted structures: spherical cavities. The substrates are characterized by optical reflectance and transmittance spectroscopy. We demonstrate, in the case of partial spherical shells, the possibility of tuning the localized surface plasmon resonances which is a desirable option when applying the substrates in e.g. surface-enhanced Raman spectroscopy. Additionally, it is demonstrated that the nanocavities exhibit distinct sensitivity with respect to the refractive index of the cavity thus verifying the potential applicability of the imprinted cavities as highly localized refractive index sensors in e.g. bioscience.

AB - We propose a simple and reproducible method for fabricating large area metal films with inter-connected nanostructures using a combination of colloidal lithography, metal deposition and a template stripping technique. The method is generic in the sense that it is possible to produce a variety of nanostructures and the corresponding inverted nanostructure in a metal film. Within plasmonics this feature opens up obvious possibilities to design and fabricate substrates with specific and tailored optical properties applicable in optical sensing platforms. In this report the method has been employed to fabricate metal films with inter-connected nanostructures consisting of either partial spherical shells or the inverted structures: spherical cavities. The substrates are characterized by optical reflectance and transmittance spectroscopy. We demonstrate, in the case of partial spherical shells, the possibility of tuning the localized surface plasmon resonances which is a desirable option when applying the substrates in e.g. surface-enhanced Raman spectroscopy. Additionally, it is demonstrated that the nanocavities exhibit distinct sensitivity with respect to the refractive index of the cavity thus verifying the potential applicability of the imprinted cavities as highly localized refractive index sensors in e.g. bioscience.

KW - Colloidal lithography; Metallic nanostructures; Optical sensing; Plasmonics

U2 - 10.1016/j.mee.2009.11.094

DO - 10.1016/j.mee.2009.11.094

M3 - Journal article

VL - 87

SP - 1471

EP - 1474

JO - Microelectronic Engineering

JF - Microelectronic Engineering

SN - 0167-9317

IS - 5-8

ER -