Takehito Hikichi

50.2: Cholesteric Liquid Crystal Micro-Capsules with a Perpendicular Alignment Shell for Photo-Addressable Electronic Paper

Cholesteric liquid crystal micro-capsules (CLC-MCs) with a perpendicular alignment shell were investigated. The CLC-MC cell showed high contrast ratio up to 17:1, reflectance over 30% and uncolored white appearance in bright state. A photo-addressable electronic paper using the CLC-MC and an organic photoconductor was also demonstrated.

Low Resistance α-Ta Film For Large Area Electronic Devices

A New method of the low resistivity α -Ta deposition technique has been developed. The sputtered Ta film deposited on TaMo alloy has bcc structure ( α -Ta) in contrast to tetragonal of the Ta mono layer ( β -Ta), and shows the resistivity as low as 22 μΩ cm. The mechanism of this transformation is not explained by simple epitaxial growth. X-ray diffraction analysis and RBS analysis indicated that the TaMo alloy layer, due to Mo diffusion from the under layer, acts as a seed plane of growth. The Ta/TaMo layered film is suitable for Large Area Electronic devices for its low resistivity.