PROBLEM TO BE SOLVED: To provide a dye to become a constituting material of a dye-sensitized solar cell having a high conversion efficiency and excelling in the durability. SOLUTION: The dye is represented by formula (1): ML<SP>1</SP>L<SP>2</SP>L<SP>3</SP>(M is a group 8 to 10 element in the long periodic table; and L<SP>1</SP>, L<SP>2</SP>and L<SP>3</SP>are bidentate ligands represented by respective specific formulae), and is, for example, a compound of formula (1a). ;COPYRIGHT: (C)2010,JPO&INPIT