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Boosting Photovoltaic Performance of Dye-Sensitized Solar Cells Using Silver Nanoparticle-Decorated N,S-Co-Doped-TiO(2) Photoanode

A silver nanoparticle-decorated N,S-co-doped TiO(2) nanocomposite was successfully prepared and used as an efficient photoanode in high-performance dye-sensitized solar cells (DSSCs) with N719 dye. The DSSCs assembled with the N,S-TiO(2)@Ag-modified photoanode demonstrated an enhanced solar-to-elect...

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Detalles Bibliográficos
Autores principales: Lim, Su Pei, Pandikumar, Alagarsamy, Lim, Hong Ngee, Ramaraj, Ramasamy, Huang, Nay Ming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4491728/
https://www.ncbi.nlm.nih.gov/pubmed/26146362
http://dx.doi.org/10.1038/srep11922
Descripción
Sumario:A silver nanoparticle-decorated N,S-co-doped TiO(2) nanocomposite was successfully prepared and used as an efficient photoanode in high-performance dye-sensitized solar cells (DSSCs) with N719 dye. The DSSCs assembled with the N,S-TiO(2)@Ag-modified photoanode demonstrated an enhanced solar-to-electrical energy conversion efficiency of 8.22%, which was better than that of a DSSC photoanode composed of unmodified TiO(2) (2.57%) under full sunlight illumination (100 mWcm(−2), AM 1.5 G). This enhanced efficiency was mainly attributed to the reduced band gap energy, improved interfacial charge transfer, and retarded charge recombination process. The influence of the Ag content on the overall efficiency was also investigated, and the optimum Ag content with N,S-TiO(2) was found to be 20 wt%. Because of the enhanced solar energy conversion efficiency of the N,S-TiO(2)@Ag nanocomposite, it should be considered as a potential photoanode for high-performance DSSCs.