β-(p-Carboxyaminophenyl)porphyrin derivatives: new dyes for TiO2 dye-sensitized solar cells

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作者
Ana M. V. M. Pereira
Ana F. R. Cerqueira
Nuno M. M. Moura
Bernardo A. Iglesias
Maria A. F. Faustino
Maria G. P. M. S. Neves
José A. S. Cavaleiro
Mário J. C. Lima
António F. da Cunha
机构
[1] University of Aveiro,Department of Chemistry and QOPNA
[2] University of Aveiro,Department of Physics and i3N
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关键词
Porphyrins; C–N coupling; Palladium; Carboxylic acid; Dye-sensitized solar cells (DSSCs); Photoinduced electron-transfer; Composite nanoparticles;
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摘要
New β-(p-carboxyaminophenyl)porphyrin derivatives were efficiently synthesized via palladium-catalysed amination of methyl 4-iodobenzoate with (2-amino-5-10,15,20-tetraphenylporphyrinato)nickel(II), followed by a demetallation/metallation sequence and basic hydrolysis. Optical and electrochemical studies revealed their potentiality for being considered as dyes in DSSCs devices, in which a power conversion efficiency of about 30 % of the more conventional Ru(II)-sensitizer N719 was achieved.
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