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Toward a quantitative model for suspended particle devices: Optical scattering and absorption coefficients
Universidad Carlos III de Madrid.
Universidad Carlos III de Madrid.
Universidad Carlos III de Madrid.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
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2013 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, Vol. 111, 115-122 p.Article in journal (Refereed) Published
Abstract [en]

Suspended particle devices (SPDs) allow rapid voltage-controlled modulation of their optical transmittance and are of interest for solar-energy-related and other applications. We investigated the spectral total and diffuse transmittance of an SPD, including its angular dependence. The optical modulation was large for visible light but almost nil in the infrared, and the devices had noticeable haze. A theoretical two-flux model was formulated and provided a quantitative description of the absorption and scattering coefficients and thereby of the detailed optical performance. This analysis gives a benchmark for assessing improvements of the SPD technology as well as for comparing it with alternative technologies for optical modulation.

Place, publisher, year, edition, pages
2013. Vol. 111, 115-122 p.
Keyword [en]
Suspended particle device, Optical properties, Diffuse transmittance and reflectance, Scattering and absorption coefficients, Two-flux theory
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
URN: urn:nbn:se:uu:diva-198615DOI: 10.1016/j.solmat.2012.12.012ISI: 000316515600017OAI: oai:DiVA.org:uu-198615DiVA: diva2:617271
Available from: 2013-04-22 Created: 2013-04-22 Last updated: 2015-06-24Bibliographically approved

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Granqvist, Claes-GöranNiklasson, Gunnar A.
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