title: Fast isomerizing methyl iodide azopyridinium salts for molecular switches.
abstract: The usefulness of azopyridinium methyl iodide salts for designing new promising light-controlled molecular switches is presented. Large absorbance changes have been produced in the samples by irradiation with light at lambda = 355 nm. The thermal recovery of the initial state took place completely within 130-450 ms, which is much faster than that reported previously for other push-pull azobenzene-doped nematic mixtures.
authors.affiliation: Grup de Materials Orgànics, Institut de Nanociència i Nanotecnologia, Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain.
authors.forename: Jaume
authors.initials: J
authors.lastname: Garcia-Amorós
authors.forename: Walter A
authors.initials: WA
authors.lastname: Massad
authors.forename: Santi
authors.initials: S
authors.lastname: Nonell
authors.forename: Dolores
authors.initials: D
authors.lastname: Velasco