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Plasmonically enhanced spectrally-sensitive coatings for gradient heat flux sensors

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conference contribution
posted on 29.01.2019, 14:13 by Kevin Conley, Vaibhav Thakore, Tapio Ala-NissilaTapio Ala-Nissila
The spectral response and directional scattering of semiconductor-oxide core-shell spherical microparticles embedded in an insulating medium at low volume fraction are computed using Mie Theory and Multiscale Modelling methods. The surface plasmon resonances of low-bandgap semiconductor microinclusions have excellent and tunable scattering properties. By adjusting the size, material, shell thickness, and dielectric environment of the particles, the energies of the localized surface resonances are tuned to match the discrete solar spectrum. Near-IR solar reflectance efficiency factors of up to 80% are observed. Further the transmittance of broadband or specific wavelengths could be blocked. These spectrally-sensitive coatings have application as a back-reflector for solar devices, high temperature thermal insulator, and optical filters in Gradient Heat Flux Sensors (GHFS) for fire safety applications.

Funding

This work was performed as part of the Academy of Finland Centre of Excellence program (project 312298).

History

School

  • Science

Department

  • Mathematical Sciences

Published in

2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama 2018)

Citation

CONLEY, K., THAKORE, V. and ALA-NISSILA, T., 2018. Plasmonically enhanced spectrally-sensitive coatings for gradient heat flux sensors. IN: 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama 2018), Toyama, Japan, 1-4th August. Red Hook (NY): Curran Associates, pp. 2435-2441.

Publisher

© The Institute of Electronics, Information and Communication Engineers (IEICE)

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

01/03/2018

Publication date

2018

Notes

This is a conference paper.

ISBN

9781538654552

ISSN

1559-9450

Language

en

Location

Toyama, Japan

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