Ruthenium(II) Photosensitizers with Electron‐Rich Diarylamino‐Functionalized 2,2′‐Bipyridines and Their Application in Dye‐Sensitized Solar Cells
作者:Qiwei Wang、Wenjun Wu、Cheuk‐Lam Ho、Liqin Xue、Zhenyang Lin、Hua Li、Yih Hsing Lo、Wai‐Yeung Wong
DOI:10.1002/ejic.201402396
日期:2014.11
New ruthenium(II) photosensitizers [Ru(dcbpy)(L)(NCS)2] (dcbpy = 4,4′-dicarboxylic acid-2,2′-bipyridine; L = 4,4′-bisdi[4-(N,N′-dimethylamino)phenyl]amino}-2,2′-bipyridine (1), 4,4′-bis[di(4-methoxyphenyl)amino]-2,2′-bipyridine (2), and 4,4′-bis[di(4-tolyl)amino]-2,2′-bipyridine (3)) were prepared and characterized and their application in dye-sensitized solar cells is presented. The optical absorption
新型钌 (II) 光敏剂 [Ru(dcbpy)(L)(NCS)2](dcbpy = 4,4'-二羧酸-2,2'-联吡啶;L = 4,4'-bisdi[4- (N,N'-二甲氨基)苯基]氨基}-2,2'-联吡啶(1),4,4'-双[二(4-甲氧基苯基)氨基]-2,2'-联吡啶(2),和制备并表征了 4,4'-双[二(4-甲苯基)氨基]-2,2'-联吡啶 (3)),并介绍了它们在染料敏化太阳能电池中的应用。这些光敏剂的光吸收在 540 nm 附近产生一个峰值,这与标准 N719 的吸收非常相似。3 的最大入射光子到电流转换效率 (IPCE) 为 80.6 %,对应于标准空气质量 (AM) 1.5 日光下的功率转换效率 (η) 为 5.68 %(相对于 N719 为 6.76 %) . 3 与有机染料 QS-DPP-I 的分子共敏化,相对于基于单个光敏剂的细胞,产生高达 6% 的更高 η 值,并且相应的