METAL-COMPLEX DYE, PHOTOELECTRIC CONVERSION ELEMENT, DYE-SENSITIZED SOLAR CELL, AND DYE SOLUTION CONTAINING METAL-COMPLEX DYE
申请人:FUJIFILM Corporation
公开号:EP2980816A1
公开(公告)日:2016-02-03
A photoelectric conversion element, a photoelectric conversion element, a dye-sensitized solar cell and a dye solution, having an electrically conductive support, a photoconductor layer containing an electrolyte, a charge transfer layer containing an electrolyte, and a counter electrode,
wherein the photoconductor layer contains semiconductor fine particles carrying a metal complex dye represented by the following Formula (I); and
wherein the metal complex dye has at least a carboxyl group and a salt of the carboxyl group, the salt being selected from the group consisting of a potassium salt, a lithium salt, and a cesium salt, and the ratio α of the number of the salt of the carboxyl group divided by the total number of the carboxyl group and the salt of the carboxyl group to be found in one molecule of the metal complex dye, lying in the range of 0.1 to 0.9:
wherein M1 represents a Ru atom or an Os atom; Z1 represents a monodentate ligand; the rings Za, Zb and Zc represent a group of nonmetallic atoms necessary for forming a nitrogen-containing 5- or 6-membered ring, provided that at least two rings among the rings formed by Za, Zb and Zc contain a carboxyl group, or a potassium salt, a lithium salt or a cesium salt of a carboxyl group; the ring Zd represents a group represented by any one of the following Formulas (Zd-1) to (Zd-5); J1 represents a substituent; and ma represents an integer of 0 to 2;
wherein, in Formulas (Zd-1) to (Zd-5), R represents an alkyl group which may be substituted with a halogen atom, an aromatic group, or a heterocyclic group; m represents an integer of 0 or more; the symbol "*" represents a binding site with the pyridine ring having J1; and the symbol "**" represents an atom or an atom anion coordinated with M1.
一种光电转换元件、一种光电转换元件、一种染料敏化太阳能电池和一种染料溶液,具有导电支架、含有电解质的光电导体层、含有电解质的电荷转移层和一个对电极、
其中,光电导体层含有携带下式(I)表示的金属络合染料的半导体微粒;以及
其中金属络合染料至少具有一个羧基和羧基盐,羧基盐选自由钾盐、锂盐和铯盐组成的组,羧基盐的数量除以一个金属络合染料分子中羧基和羧基盐的总数的比率α在 0.1 至 0.9 之间:
其中 M1 代表 Ru 原子或 Os 原子;Z1 代表单齿配体;环 Za、Zb 和 Zc 代表形成含氮 5 元环或 6 元环所需的一组非金属原子,条件是由 Za、Zb 和 Zc 形成的环中至少有两个环含有羧基或羧基的钾盐、锂盐或铯盐;环 Zd 代表下式(Zd-1)至(Zd-5)中任一式所代表的基团; J1 代表取代基; ma 代表 0 至 2 的整数;
其中,在式(Zd-1)至(Zd-5)中,R 代表可被卤素原子、芳香基团或杂环基团取代的烷基;m 代表 0 或以上的整数;符号 "*"代表与具有 J1 的吡啶环的结合位点;符号 "**"代表与 M1 配位的原子或原子阴离子。