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Updated: Jul 16, 2026

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
Published on: October 31, 2019
Expected and unexpected behavior of the orientational order and dynamics induced by azobenzene solutes in a nematic
Ilaria Vecchi1, Alberto Arcioni, Corrado Bacchiocchi
1Dipartimento di Chimica Fisica e Inorganica and INSTM, Università, Viale Risorgimento 4, I-40136 Bologna, Italy.
Abstract:
We have explored the changes in the phase stability, orientational order, and dynamics of the nematic 4-cyano-4'-n-pentylbiphenyl (5CB) doped with either the trans or the cis form of different p-azobenzene derivatives using the ESR spin-probe technique. In particular, we have studied the effects induced by each of the seven nonmesogenic 4-R-phenylazobenzenes (R = H, F, Br, CH3, CF3, On-Bu, Ot-Bu) at 1% and 7% mole fraction on the order parameter
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