Journal Article A helical naphthopyran dopant for photoresponsive cholesteric liquid crystals

Kim, Yuna  ,  Frigoli, Michel  ,  Vanthuyne, Nicolas  ,  Tamaoki, Nobuyuki

53 ( 1 )  , pp.200 - 203 , 2017-01-04 , The Royal Society of Chemistry
The first photoresponsive cholesteric liquid crystal comprising a photoisomerizable helical naphthopyran derivative dopant and a nematic liquid crystal is reported. An unprecedented helical twisting power switching ratio of over 90% allowed us to demonstrate multi-cycle rotational motion of micro-objects by UV light irradiation.

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