New tunable ruthenium complex dyes for TiO2 solar cells

Autor(es)

Guimaraes, Robson R. ^[1] ; Parussulo, Andre L. A. ^[1] ; Toma, Henrique E. ^[1] ; Araki, Koiti ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Chem, BR-05508000 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Inorganica Chimica Acta; v. 404, p. 23-28, AUG 1 2013.
• Citações Web of Science: 21

Resumo

The light-to-electricity conversion efficiencies of the new (Bu4N)(3){[}Ru(dcbpy)(2)(tmtH(2))], (Bu4N)(4){[}Ru(dcbpy)(2)(tmtH)] and (Bu4N)(5){[}Ru(dcbpy)(2)(tmt)] complexes, where dcbpy = 2,2'-bipyridyl-4,4'-dicarboxylate and tmt = 2,4,6-trimercapto-1,3,5-triazine, were comparable with those obtained with the N719 dye. Furthermore, the contribution of two MLCT and a LMCT charge-transfer band to the energy conversion process was revealed by deconvolution of the photoaction spectra, indicating that they are the first ruthenium dyes presenting long distance photo-injection from a ligand-to-metal charge-transfer excited state. (C) 2013 Elsevier B. V. All rights reserved. (AU)

• Processo FAPESP: 09/08584-6 - Química e nanotecnologia molecular
• Beneficiário: Henrique Eisi Toma
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 08/01495-5 - Desenvolvimento de sistemas supramoleculares para dispositivos fotoeletroquímicos
• Beneficiário: André Luis Araújo Parussulo
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto