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    • 10. 发明授权
    • Photosensitizer dye
    • 光敏剂染料
    • US08106198B2
    • 2012-01-31
    • US12223601
    • 2007-02-05
    • Ke-Jian JiangShuji NodaShozo Yanagida
    • Ke-Jian JiangShuji NodaShozo Yanagida
    • C07F15/00H01L31/00
    • C09B57/10C07D213/38C07D409/14H01G9/2031H01G9/2059H01L51/0086H01M14/005Y02E10/542Y02E10/549
    • A theme of the present invention is to provide a new transition metal complex, useful as a photosensitizer dye for a photoelectric conversion element having an excellent durability and a high photoelectric conversion characteristic. The present invention provides a bivalent transition metal complex constituted of (i) a bipyridyl polyacidic ligand, such as a dicarboxybipyridyl (dcbpy) ligand, as an adsorption site for adsorption onto titanium dioxide particle surfaces; (ii) a ligand, selected from the group consisting of an isothiocyanato group, an isocyanato group, and an isoselenocyanato group and enabling absorption and excitation at long wavelengths and charge transfer; and (iii) a bipyridyl (bpy) ligand, having an alkyl group or an alkoxy group, preferably a long-chain alkyl group, and a conjugately bonded thienylvinylene group, aminophenylenevinylene group, etc., and improving an absorbance of a transition metal complex and imparting stability against nucleophile to a sensitizer dye that improves an absorption bathochromic effect.
    • 本发明的主题是提供一种新的过渡金属络合物,其可用作具有优异耐久性和高光电转换特性的光电转换元件的光敏染料。 本发明提供由(i)二吡啶基多酸配体如二羧基联吡啶(dcbpy)配体构成的二价过渡金属络合物作为吸附在二氧化钛颗粒表面上的吸附位点; (ii)选自异硫氰酸酯基,异氰酸基和异硒基异氰酸酯基的配体,并且能够在长波长和电荷转移下进行吸收和激发; 和(iii)具有烷基或烷氧基,优选长链烷基和共轭键合的噻吩基亚乙烯基,氨基亚苯基亚乙烯基等的联吡啶(bpy)配体,并改善过渡金属络合物的吸光度 并赋予敏化剂染料对亲核试剂的稳定性,改善了吸收红细胞色素的作用。