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Proceedings Paper

Spatially and temporally tunable window devices on flexible substrates
Author(s): Kezi Cheng; Aftab Hussain; David Clarke
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Paper Abstract

Windows whose transmittance can be modified by an applied voltage have previously been fabricated from soft, transparent elastomers sandwiched between ITO coated glass and a compliant, silver nanowire top electrode.1 In this contribution we extend the capabilities of the tunable window so that the optical transmittance can be varied spatially over the window according to voltage signals applied to different segments of the back electrode of the window, defined by patterning of individually addressable electrodes. The actuation signals are controlled using TTL-level input signals applied to high voltage switches. We also show that the spatially tunable window can be fabricated on a flexible substrate, such as PET, and the optical transmittance is not affected by bending of the substrate. The use of a polymer substrate not only increases possible applications of this class of voltage controlled light modulation device but also has the potential of reducing cost at an industrial scale by replacing more costly ITO coated glass substrate.

Paper Details

Date Published: 27 March 2018
PDF: 8 pages
Proc. SPIE 10594, Electroactive Polymer Actuators and Devices (EAPAD) XX, 1059423 (27 March 2018); doi: 10.1117/12.2296449
Show Author Affiliations
Kezi Cheng, Harvard Univ. (United States)
Aftab Hussain, Harvard Univ. (United States)
David Clarke, Harvard Univ. (United States)


Published in SPIE Proceedings Vol. 10594:
Electroactive Polymer Actuators and Devices (EAPAD) XX
Yoseph Bar-Cohen, Editor(s)

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