Modelling and electro-optical testing of suspended particle devices

Abstract:

Some smart windows make use of suspended particle devices (SPDs) which are made of charged rod-shape particles that change their orientation in an applied electric field, thereby allowing transmittance control. In this work, the electro-optical behaviour of a commercial SPD is analyzed. Impedance analysis shows characteristics similar to those of a Randles circuit, and a modified equivalent circuit is proposed and experimentally validated. Intermediate levels of transmittance are obtained using a customized field programmable gate array (FPGA)-based electrical circuit. Finally, measurements are taken to check the applicability of the SPD device and control system in smart glazing or photonic applications. © 2008 Elsevier B.V. All rights reserved.

Año de publicación:

2008

Keywords:

• optical properties
• Electro-optical materials
• Scattering particles
• Electro-optical devices
• solar energy
• thin films
• Organic materials

Fuente:

scopus

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