A novel and large area suitable water-based ink for the deposition of cobalt sulfide films for solar energy conversion with iodine-free electrolytes

Autor(es)

Congiu, Mirko ^[1] ; Lanuti, Alessandro ^[2] ; di Carlo, Aldo ^[2] ; Graeff, Carlos F. O. ^{[3, 1]}

Afiliação do(s) autor(es)

^[1] UNESP Univ Estadual Paulista, POSMAT Programa Posgrad Ciencia & Tecnol Mat, BR-17033360 Bauru, SP - Brazil

^[2] Univ Roma Tor Vergata, Dept Elect Engn, CHOSE Ctr Hybrid & Organ Solar, I-00133 Rome - Italy

^[3] UNESP, Fac Sci, Dept Phys, Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Solar Energy; v. 122, p. 87-96, DEC 2015.
• Citações Web of Science: 8

Resumo

A novel, cheap, reliable water based precursor ink has been used for the large scale production of amorphous cobalt sulfide (CoS) on fluorine doped tin oxide (FTO). The method uses a metal-organic complex of Co(II) and thioglycolic acid (TGA), it is cheap and easy to prepare. The electrodes prepared using our method have been applied in the oxidation/reduction using different redox couples dissolved in liquid electrolytes containing: I-/I-3(-); ferrocene/ferrocenium; bipyridine {[}Co(bpy)(3)](2+/3+) complexes and sodium polysulfide. The composition, morphology and the efficiency of the CoS electrodes have been investigated. The CoS films show a good adherence to the substrate, good transparency and an excellent electrocatalytic efficiency with all of the different redox electrolytes. The electrodes have been used in DSSC devices using the organic dye D5 with efficiencies up to 6.8%. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 13/07396-7 - Novos Materiais para Células Solares Sensibilizadas por Corante
• Beneficiário: Mirko Congiu
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/25028-5 - Avaliação global e otimização de células sensibilizadas e híbridas
• Beneficiário: Carlos Frederico de Oliveira Graeff
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional
• Processo FAPESP: 08/57872-1 - Instituto Nacional de Ciências dos Materiais em Nanotecnologia
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Temático