Solar cells with high efficiency based on sensitized Nanocrystalline Titanium oxide films

• Autores: Gómez, M. M., Lu, J., Olsson, E., Hagfeldt, A., Granqvist, C. G.
• Formato: artículo
• Fecha de Publicación: 2001
• Institución: Universidad Nacional de Ingeniería
• Repositorio: Revistas - Universidad Nacional de Ingeniería
• Lenguaje: español
• OAI Identifier: oai:oai:revistas.uni.edu.pe:article/526
• Enlace del recurso: https://revistas.uni.edu.pe/index.php/tecnia/article/view/526
• Nivel de acceso: acceso abierto

Nanocrystalline solar cells were made by incorporation of cis-dithiocyanato-bis(2,2'-bipyridyl- 4,4'-dicarboxylate) ruthenium (I1) into sputter deposited titanium oxide films. After a pyridine treatment, it was possible 10 achieve a photoelectric conversion efficiency as high as 7% for a solar intensity of100W/m almost the same as for conventional nanocrystalline cells with colloidally prepared titanium oxide. Transmission electron microscopy indicated a parallel penniform microstructure, and secondary ion mass spectroscopy showed that the dye incorporation was uniform except in the bottom parts of the sputtered films where a decreased porosity seems to limit the penetration of the dye.