ポリインの分光学的基礎と固体材料化の試み

抄録

A series of polyynes, a class of linear carbon molecules end-capped by hydrogen, cyanide, and another group, became accessible by the laser ablation of carbon particles in a liquid organic solvent such as hexane or acetonitrile. Optical properties have been studied to provide information on the electronic and vibrational structures of size-selected polyyne molecules. Solid single-wall carbon nanotubes (SWNTs), cyclodextrin, and polyvinyl alcohol (PVA) were examined as the hosts in which polyyne molecules were dispersed. In a stretched PVA film, the polyyne molecules were aligned in one direction and showed UV-polarizing effects.