Details

Autor(en) / Beteiligte

• BLINOV, L. M
• KOZLOVSKY, M. V
• NAKAYAMA, K
• OZAKI, M
• YOSHINO, K

Titel

Effect of trans-cis isomerization of a chiral azo-dye on dye-induced ferroelectricity in an achiral liquid crystal

Ist Teil von

• Japanese Journal of Applied Physics, 1996-10, Vol.35 (10), p.5405-5410

Ort / Verlag

Tokyo: Japanese journal of applied physics

Erscheinungsjahr

1996

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A chiral azo-dye showing reversible trans-cis isomerization upon UV light irradiation was used as a dopant to induce ferroelectric properties in an achiral smectic C liquid crystal matrix. The kinetics of the isomerization in the smectic matrix was studied optically. The influence of the isomerization process on the ferroelectric properties of the mixture was investigated by observation of the ferroelectric switching in the smectic C phase and electroclinic response in the smectic A phase. The experimental results show that the banana-shaped cis isomers are less efficient in inducing the spontaneous polarization than their rodlike trans counterparts.