Electrochemical Properties of Dopants and the D‐C Dynamic Scattering of a Nematic Liquid Crystal

Flow of liquid crystal from one electrode to the other was observed during dynamic scattering of a phenyl benzoate nematic liquid crystal. The direction of the flow depended upon the electrochemical properties of dopants. The flow was from cathode to anode when the dopant was an electron acceptor, and vice versa when the dopant was a donor. A redox dopant gave distinctively different d‐c dynamic scattering patterns from a salt dopant, and did not give the Williams domain pattern which was observed with a salt dopant. Charge conduction mechanisms through the liquid crystal are discussed in terms of the electrode reactions of the liquid crystal components and the dopants.