Effect of the Number of Anchoring and Electron-Donating Groups on the Efficiency of Free-Base- and Zn-Porphyrin-Sensitized Solar Cells

被引：3
|
作者：
Nasrollahi, Raheleh [1 ,2 ]
Martin-Gomis, Luis [1 ]
Fernandez-Lazaro, Fernando [1 ]
Zakavi, Saeed [2 ]
Sastre-Santos, Angela [1 ]
机构：
[1] Univ Miguel Hernandez, Area Quim Organ, Inst Bioingn, Avda Univ S-N, Elche 03203, Spain
[2] IASBS, Dept Chem, Zanjan 4513766731, Iran
来源：
MATERIALS | 2019年 / 12卷 / 04期
关键词：
porphyrins; DSSC; multiple anchoring group; electron donating groups; PERFORMANCE; PHTHALOCYANINE; DYES; SUBSTITUENTS; DSSCS;
D O I：
10.3390/ma12040650
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A series of porphyrin compounds, free base (H2P) and their Zn (II) metallated analogues (ZnP), bearing one, two or three carboxylic acid groups, have been synthesized, characterized, and used as sensitizers in dye sensitized solar cells (DSSCs). The performance of these devices has been analyzed, showing higher efficiencies of those sensitized with ZnP compounds. These results have been explained, on one hand, taking into account the electronic character of the metal ion, which acts as mediator in the injection step, and, on the other, considering the number of anchoring groups, which determines both the stereoelectronic character of the dye and the way it binds to TiO2 surface.
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页数：14
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