Photoresponsive thin films containing an azobenzene derivative intercalated with a layered double hy

来源 :Chinese Science Bulletin | 被引量 : 0次 | 上传用户:zww100200
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Two kinds of optically transparent thin films with photochromic properties have been fabricated based on co-intercalation of 4-(4-anilinophenylazo)benzenesulfonate(AO5)and sodium dodecylbenzene sulfonate(SDS)into the galleries of a ZnAl layered double hydroxide(LDH)by two synthetic methods:solvent evaporation and in situ crystallization.The two films possess LDH crystallites in different orientations relative to the substrates depending on their fabrication method:horizontal and vertical.The relationship between the photochromic behavior of the interlayer chromophore and the orientation of the LDH crystallites is studied thoroughly.The orientation of the LDH crystallite influences the photochromic behavior of the films.The films exhibited different absorption and wettability characteristics,providing the potential for application of dye-LDH films as photochromic materials and light sensitive switches. Two kinds of optically transparent films with photochromic properties have been fabricated based on co-intercalation of 4- (4-anilinophenylazo) benzenesulfonate (AO5) and sodium dodecylbenzene sulfonate (SDS) into the galleries of a ZnAl layered double hydroxide two synthetic methods: solvent evaporation and in situ crystallization. The two films possess LDH crystallites in different orientations relative to the substrates depending on their fabrication method: horizontal and vertical. The relationship between the photochromic behavior of the interlayer chromophore and the orientation of the LDH crystallites is studied thoroughly. The orientation of the orientation of the films of photochromic behavior of the films. films often different absorption and wettability characteristics, providing the potential for application of dye-LDH films as photochromic materials and light sensitive switches.
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