棒状液晶を用いた多結晶薄膜の水平配向制御と縦型デバイスへの応用

抄録

We have investigated to fabricate the planar aligned polycrystalline thin films using liquid crystal phase and made vertical device with the planar aligned thin films. We find new polymer, Poly(methacrylic acid) (PMAA), which shows higher glass transition temperature, as over coated layer. Spin-coated thin films of the liquid crystalline phenyl-naphthalene derivative with PMAA over coated layer and heated in SmA phase give us reoriented thin films from vertical to planar alignments with high reliability. In the planar aligned polycrystalline thin films with varied thickness from about 10 nm to 50 nm, all films show reorientation from vertical to planar alignments. We fabricate organic light emitting diodes with the planar aligned thin films.