Shinji Higashijima

Organic dyes containing fluorene-substituted indoline core for zinc oxide dye-sensitized solar cell

A novel idoline dye, having dimethylfluorene-substituted indoline donor and dicyanovinylidene-introduced rhodanine acceptor (DN350), gave much higher efficiency than D205 due to bathochromic absorption band and prevention of aggregates formation.

Importance of fluorescence lifetimes for efficient indoline dyes in dye-sensitized solar cells

To make a molecular design of efficient indoline dyes, fluorescence lifetimes should be longer than ca. 0.8 ns in chloroform, in addition to suitable HOMO and LUMO levels and bathochromic UV-vis absorption bands.

Long-term stability of novel double rhodanine indoline dyes having one and two anchor carboxyl group(s) in dye-sensitized solar cells

An indoline dye having both α-cyanoacrylic acid and rhodanine acetic acid anchor groups at the acceptor moiety exhibited improved stability under fluorescence light irradiation.