側鎖にオリゴシロキサン鎖を有する液晶性フタロシアニンの合成と物性評価

抄録

Liquid crystalline (LC) semiconductors are suitable for thin film devices produced by solution processes. LC phthalocyanine derivatives form one dimensional columnar aggregates based o n π-π stacking interaction, and they exhibit efficient one -dimensional carrier transport along their columnar axis. However, it has been difficult to produce homogeneous thin films by solution processes because they usually crystallize at room temperature. In this study, we synthesize LC phthalocyanine Ni complexes bearing oligosiloxane chains. The compounds bearing disiloxane and branched trisiloxane chains exhibit columnar phases at room temperature. In spite of the bu lkiness of the oligo siloxane chains, stable columnar phases appear, due to the interaction between oligosiloxane chains. The two compounds are possible to form thin film by the spin-coating.