Artículos de revistas
Quasi-solid Electrolyte With Polyamidoamine Dendron Modified-talc Applied To Dye-sensitized Solar Cells
Registro en:
Journal Of Power Sources. Elsevier Science Bv, v. 325, p. 161 - 170, 2016.
0378-7753
1873-2755
WOS:000381165600019
10.1016/j.jpowsour.2016.06.041
Autor
Andrade
Marcos A. S.
Jr.; Nogueira
Ana F.; Miettunen
Kati; Tiihonen
Armi; Lund
Peter D.; Pastore
Heloise O.
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) A sequence of generations of polyamidoamine dendron modified-talc, PAMAM-talc-Gn (n = 1,3, 5 and 7), is proposed as additive in a composite gel electrolyte for dye-sensitized solar cells. Polyiodides are intercalated into the organotalc interlamellar space by adsorption of iodine vapor, producing triiodide and polyiodides. We investigate the effect of organotalc content on the charge transport in the electrolyte and solar cell performance and optimize the organotalc content. Without the previous adsorption of iodine molecules, the organotalcs appear to remove iodine from the electrolyte solution decreasing device's performance significantly. Instead, the samples with additional iodide had higher J(SC) and efficiency approaching the values of the reference cells containing liquid, which suggests that this kind of gelling method would be suitable for dye solar cells. Charge transport in the gel electrolyte is investigated with electrochemical impedance spectroscopy and cyclic voltammetry analyses using symmetrical CE-CE electrochemical cells. (C) 2016 Elsevier B.V. All rights reserved. 325 161 170 Fundacao de Amparo a Pesquisa no Estado de Sao Paulo, FAPESP [2013/05911-1, 2014/06942-0] Conselho Nacional de Desenvolvimento Cientffico e Tecnologico, CNPQ [200082/2015-9, 490241/2012-3] Academy of Finland [271081, 253643] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)