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The Radiation-Induced Coloration of Amorphous Photochromic Dithienylethene Films

机译:非晶态光致变色二噻吩乙烯薄膜的辐射诱导着色

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摘要

The radiation-induced coloration of bulk amorphous films of five photochromic diarylethenes was studied with the aim of developing reusable,sensitive color dosimeters.The films contain an extremely high concentration of diarylethenes.The most intense coloration was observed for the film containing l,2-bis(2,4-dimethyl-3-thienyl)perfluorocyclo-pentene having 3-phenyl-4-diphenylyl substituents.The color disappeared upon irradiation with visible light.The coloration increased linearly with an increase in the absorbed dose up to 3000 Gy.The relative sensitivity of radiation-induced coloration among the five derivatives qualitatively agreed with the sensitivity of photo-induced coloration from UV light(254 nm)irradiation.
机译:为了发展可重复使用的灵敏色度计,研究了五种光致变色二芳烃的无定形薄膜的辐射诱导着色,该膜包含极高浓度的二芳烃,观察到最强烈的着色是包含1,2-的薄膜。具有3-苯基-4-二苯基取代基的双(2,4-二甲基-3-噻吩基)全氟环戊烯,可见光照射后颜色消失,随着吸收剂量增加至3000 Gy,颜色呈线性增加。在五个衍生物中,辐射诱导的着色的相对灵敏度与紫外光(254 nm)辐照引起的光诱导着色的灵敏度在质量上一致。

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