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Through the looking glass: A reflection color transition is demonstrated in a smectic liquid crystal doped with a photochromic azobenzene and a chiral agent with high helical twisting power. The reflection color can be switched reversibly due to the isomerization of azobenzene upon UV/visible irradiation.
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| http://dx.doi.org/10.1002/cphc.201200054 | DOI Listing |
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