期刊
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
卷 430, 期 -, 页码 15-+出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/15421400590946109
关键词
femtosecond spectroscopy; fulgides; photochromic switches
The dynamics of fulgide photoswitches has been investigated applying femto-second transient absorption spectroscopy. The switching performance of differently substituted fulgides is equally improved in polymer (PMMA) environment as compared to liquid solution (toluene). In the polymer a single pathway for the ring-closure reaction, i.e., without the intermediate observed in toluene, allows for sub-picosecond reaction times. The ring-opening (on-switching) reaction in the donor-acceptor substituted energy-transfer system occurs on ps time scale.
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