Title
Imprinted photonic crystal chemical sensors
Author
Boersma, A.
Burghoorn, M.M.A.
Saalmink, M.
Publication year
2011
Abstract
In this paper we present the use of Photonic Crystals as chemical sensors. These 2D nanostructured sensors were prepared by nano-imprint lithography during which a nanostructure is transferred from a nickel template into a responsive polymer, that is be specifically tuned to interact with the chemical compound that must be detected. By creating a Photonic Crystal in a responsive polymer, the sensitivity of such a sensor can be greatly enhanced with respect to nanophotonic sensors that are only functionalized by a surface treatment. We have shown the functionality of an imprinted sensor by exposing the nanostructures to various liquids and vapours and monitor the change in reflected signal. Depending on the interactions and refractive index contrasts, the maximum wavelength of the reflected light can decrease (when exposed to toluene) or increase (when exposed to acetone). © 2011 Published by Elsevier Ltd.
Subject
Fluid Mechanics Chemistry & Energetics
RMC - Responsive Materials & Coating
TS - Technical Sciences
Chemistry
Industrial Innovation
Chemical sensor
Nanoimprint lithography
Photonic Crystal
Responsive polymers
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TNO identifier
446890
ISSN
1877-7058
Source
25th Eurosensors Conference, 4-7 September 2011, Athens, Greece, 25, 27-30
Series
Procedia Engineering
Document type
conference paper