Optical and dielectric properties of photochromic dye in amorphous state and its application

作者： Tsuyoshi Kawai , Takashi Koshido , Katsumi Yoshino

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摘要: Preparation of amorphous phase a photochromic dye, cis‐1,2‐dicyano‐1,2‐ bis(2,4,5‐trimethyl‐ 3‐thienyl) ethene, has been investigated and its properties have studied. This dye shows clear photochromism in the solid state accompanying reversible changes absorption spectrum, refractive index, dielectric properties. Clear optical pattern formation achieved on layer.