A photosensitizer complex of formula (I) MLX
2
in which M is a transition metal selected from ruthenium, osmium, iron, rhenium and technetium; each X is a co-ligand independently selected from NCS
−
, Cl
−
, Br
−
, I
−
, CN
−
, H
2
O; pyridine unsubstituted or substituted by at least one group selected from vinyl, primary, secondary or tertiary amine, OH and C
1-30
alky, preferably NSC
−
and CN
−
. L is a tetradentate polypyridine ligand, carrying at least one carboxylic, phosphoric acid or a chelating group and one substituted or unsubstituted alkyl group having
1
to
50
carbon atoms, substituted or unsubstituted alkylamide group having
2
to
30
carbon atoms or substituted or unsubstituted aralkyl group having
7
to
50
carbon atoms. A dye-sensitized electrode includes a substrate having an electrically conductive surface, an oxide semiconductor film formed thereon, and the above sensitizer of formula (I) as specified above, supported on the film.
公式(I)的光敏剂配合物为MLX2,其中M是从
钌、
锇、
铁、
锇和
锝中选择的过渡
金属;每个X是独立选择的
NCS−、Cl−、Br−、I−、CN−、
H2O的共
配体;
吡啶未取代或取代至少一个来自
乙烯基、一级、二级或三级胺、OH和C1-30烷基的基团中的一个,优选为NSC−和CN−。L是四齿多
吡啶配体,携带至少一个
羧酸、
磷酸或螯合基团和一个取代或未取代的烷基,其具有1到50个碳原子,取代或未取代的烷酰胺基团,其具有2到30个碳原子,或取代或未取代的芳基烷基基团,其具有7到50个碳原子。一种
染料敏化电极包括具有电导表面的基底,其上形成氧化物半导体薄膜以及上述公式(I)所指定的敏化剂,支撑在薄膜上。