2b06 極薄ポリイミド光配向膜上のペンタセン薄膜の分子配向と電界効果移動度(分子配向エレクトロニクス,口頭発表,2012年日本液晶学会討論会)

抄録

We have investigated the molecular orientation and field-effect mobility of pentacene thin films formed on very thin photo-aligned polyimide films. The exposure of linearly polarized light in photo-alignment treatment was varied up to 300 J/cm². The molecular orientation, field-effect mobility, surface morphology, and crystallinity of the pentacene films were determined by polarized infrared absorption, current-voltage characteristics of pentacene-field effect transistors, atomic force microscopy, and X-ray diffraction, respectively. Their light exposure dependence will be discussed.