A bistable viologen‐TiO 2 color switch

Abstract— The electro‐optical characteristics of a pixel configuration used in electrochromic viologen‐TiO 2 passive‐matrix devices are studied. The configuration has two stable color states in an intermediate voltage regime. Color switching is performed by applying voltages outside this regime. The...

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Bibliographic Details
Published in:Journal of the Society for Information Display 2005-12, Vol.13 (12), p.1035-1037
Main Authors: Edwards, Mårten O. M., Persson, Roger
Format: Article
Language:English
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Summary:Abstract— The electro‐optical characteristics of a pixel configuration used in electrochromic viologen‐TiO 2 passive‐matrix devices are studied. The configuration has two stable color states in an intermediate voltage regime. Color switching is performed by applying voltages outside this regime. The bistability is due to electrolyte‐additive controlled electron trapping in the color‐changing viologen molecules.
ISSN:1071-0922
1938-3657
DOI:10.1889/1.2150373