Nanoprecursor-Mediated Synthesis of Mg²âº-Doped TiO2 Nanoparticles and Their Application for Dye-Sensitized Solar Cells.
J Nanosci Nanotechnol
; 16(1): 744-52, 2016 Jan.
Article
en En
| MEDLINE
| ID: mdl-27398517
ABSTRACT
Surface-doping anatase TiO2 nanoparticles with Mg²âº were prepared via a novel synthetic method, and used as photoanodes for dye-sensitized solar cells (DSSCs). X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) image results indicate that the Mg²âº doping has no effect on the crystal phase and morphology of anatase TiO2. The shift in XRD peaks to higher angles, the absorption shift in UV-vis diffuse reflection spectra, and X-ray photoelectron spectroscopy (XPS) results indicate the incorporation of Mg²âº-ions into the TiO2 lattice. The as-prepared TiO2nanoparticles doped with a low concentration of ions is proven a superior photoanode material than pure anatase TiO2. The energy-conversion efficiency (1) of DSSC based on TiO2 nanoparticles doped with Mg²âº is at a maximum of 5.90%, corresponding to an efficiency improvement of 23.4% as compared to DSSC based on un-doped TiO2. This new synthetic approach using a nanoprecursor provides a simple and versatile method for the preparation of excellent photoanode materials for application in solar energy conversion devices.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Energía Solar
/
Titanio
/
Magnesio
Idioma:
En
Revista:
J Nanosci Nanotechnol
Año:
2016
Tipo del documento:
Article