Water-soluble cationic and anionic oligofluorenes bearing N1-alkylcytosine side chains, namely, OF-1 and OF-2 were synthesized. The photoluminescence (PL) intensity of an aqueous solution of OF-1 decreased by the addition of...

Polysiloxane antireflective structures composed of tapered nanopillar arrays were prepared by nanoimprinting using anodic porous alumina molds with tapered pores. Because polysiloxane is a heat-resistant material, the resulting tapered nanopillar array structures were maintained even after heat treatment at 200ºC. In addition, no significant changes in antireflection properties were observed before and after heat treatment at 200ºC. These results indicate that the polysiloxane nanopillar arrays obtained in this study can be applied as heat-resistance antireflection structures.

No abstract

Water-soluble π-conjugated polyfluorene bearing 6-N 1 -cytosinehexyl and 6-trimethylammoniumhexyl bromide side chains, namely polymer-1, was synthesized by Suzuki polycondensation. The absorption onset wavelength (λ onset ) of the polymer was longer than that of the monomer and confirmed the presence of the π-conjugated system along the polymer chain. The cyclic voltamme-