Nanocrystallization of diarylethene and photochromic properties

Norio Tagawa, Akito Masuhara, Hitoshi Kasai, Hachiro Nakanishi, Hidetoshi Oikawa

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


We have succeeded, for the first time, in fabrication of diarylethene (DAE), 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)-perfluorocyclopentene, nanocrystals using two nanocrystallization processes based on the reprecipitation method. Process I was the microwave irradiation after reprecipitation step. Process II uses a nucleating agent of a closed-DAE molecule without microwave irradiation. The crystal structure of the obtainedDAEnanocrystals was elucidated as the lattice structure of an open-DAE bulk crystal. Moreover, the DAE nanocrystals clearly exhibited photochromism by alternate irradiation of UV and visible light.

Original languageEnglish
Pages (from-to)2857-2859
Number of pages3
JournalCrystal Growth and Design
Issue number7
Publication statusPublished - 2010 Jul 7


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