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A bistable viologen‐TiO 2 color switch
Author(s) -
Edwards Mårten O. M.,
Persson Roger
Publication year - 2005
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.2150373
Subject(s) - viologen , bistability , electrochromism , materials science , optoelectronics , voltage , optical switch , optical bistability , electrolyte , trapping , photochromism , optics , photochemistry , nanotechnology , chemistry , nonlinear optics , physics , electrode , ecology , laser , quantum mechanics , biology
— 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.