Photoinduced topographical changes on microcrystalline surfaces of diarylethenes
Photoinduced topographical changes on microcrystalline surfaces of diarylethenes
复制标题
二芳基乙烯微晶表面的光诱导形貌变化
DOI：
10.1039/c6ce00718j
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发表时间：
2016
期刊：
影响因子：
3.1
通讯作者：
K. Uchida
中科院分区：
文献类型：
--
作者：
N. Fujinaga;Naoki Nishikawa;Ryo Nishimura;Kengo Hyodo;S. Yamazoe;Y. Kojima;Kazuki Yamamoto;T. Tsujioka;M. Morimoto;S. Yokojima;Shinichiro Nakamura;K. Uchida
通过交替照射与紫外线和可见光，可逆的形貌变化观察到的微晶表面上的二芳基乙烯衍生物的玻璃化转变温度（Tg）以上的开环异构体。对于光生的闭环异构体，晶体生长在分子运动软化的表面进行。这是闭环异构体的自聚集。光生表面形貌的出现取决于闭环异构体的晶体习性。反映的性质（晶体习性）的二芳基乙烯衍生物，我们得到了立方体，针，和板状晶体的闭环异构体的微晶表面上的开环异构体的紫外光照射。即使是在活性碳原子上具有一个异丙基的衍生物，其闭环异构体是热不稳定的，也显示出光诱导的形貌变化，因为开环异构体的Tg在环境温度附近。
By alternate irradiation with UV and visible light, reversible topographical changes were observed on the microcrystalline surfaces of diarylethene derivatives above the glass transition temperatures (Tg) of their open-ring isomers. For the photogenerated closed-ring isomers, the crystal growth proceeded at the surface softened by molecular movement. This is the self-aggregation of the closed-ring isomers. The photogenerated surface topographies appear depending on the crystal habits of the closed-ring isomers. Reflecting the properties (crystal habits) of diarylethene derivatives, we obtained cubic, needle, and plate-shaped crystals of the closed-ring isomers on the microcrystalline surfaces of the open-ring isomers by irradiation with UV light. Even a derivative having one isopropyl group at a reactive carbon atom, whose closed-ring isomer is thermally unstable, showed photoinduced topographical changes, because the Tg of the open-ring isomer is around ambient temperature.
二芳基乙烯薄膜表面的光致形貌变化
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
Kingo Uchida;Norikazu Izumi;Yuko Kojima;Tsuyoshi Tsujioka;Shinichiro Nakamura;and Masahiro Irie
通讯作者：
and Masahiro Irie