A new class of light-fast oxonol dyes: organic-glass forming salts of oxonol anions and 4, 4′-bipyridinium cations

Y Inagaki, S Morishima, K Wariishi, N Saito…

Index: Inagaki, Yoshio; Morishima, Shin-Ichi; Wariishi, Koji; Saito, Naoki; Akiba, Masaharu Journal of Materials Chemistry, 2006 , vol. 16, # 4 p. 345 - 347

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Citation Number: 11

Abstract

These dyes were spin-coated onto glass plates using 2,2,3,3-tetrafluoro-1-propanol as a solvent to form noncrystalline-solid-dye films. They were colored, transparent, uniform, but dark when placed between crossed polarizers. These characteristics are typical of amorphous solids or so-called organic glasses. These films, supported on glass plates, were irradiated with a 170000-lux xenon lamp in a merry-go-round apparatus under air-cooling. The absorption ...