Active electrochemical high-contrast gratings as on/off switchable and color tunable pixels

Cheon Woo Moon, Youngji Kim and Jerome Kartham Hyun ()
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Cheon Woo Moon: Ewha Womans University
Youngji Kim: Ewha Womans University
Jerome Kartham Hyun: Ewha Womans University

Nature Communications, 2022, vol. 13, issue 1, 1-8

Abstract: Abstract To be viable for display applications, active structural colors must be electrically tunable, on/off switchable, and reversible. Independently controlling the first two functions, however, is difficult because of causality that ties the real and imaginary parts of the optical constants or changing overlap of fields during structural variations. Here, we demonstrate an active reflective color pixel that encompasses separate mechanisms to achieve both functions reversibly by electrochemically depositing and dissolving Cu inside the dielectric grating slits on a Pt electrode with ΔV

Date: 2022
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DOI: 10.1038/s41467-022-31083-z

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