申请人:CHI Yun
公开号:US20110277841A1
公开(公告)日:2011-11-17
Photosensitizers having a formula of RuL
1
L
2
L
3
are provided, wherein Ru is ruthenium; L
1
, L
2
and L
3
represent heterocyclic bidentate ligands. L
1
has a chemical formula represented by formula (b), L
2
has a chemical formula represented by formulae (b), (c), (d) or (e), and L
3
a chemical formula represented by formulae (c), (d) or (e). Each of R1 to R18 is a member independently selected from the group consisted of hydrogen, halogen, aryl group, alkenyl group, C1-C20 alkyl group, cycloalkyl group, alkynyl group, CN, CF
3
, alkylamino, amino, alkoxy, heteroaryl, halogen substituted aryl group, halogen substituted aromatic group, haloalkyl substituted aryl group, haloalkyl substituted aromatic group and aryl substituted C1-C20 alkyl group. The above-mentioned photosensitizers are suitable to serve as sensitizers for fabrication of high efficiency dye-sensitized solar cells.