title: The influence of yttrium dopant on the properties of anatase nanoparticles and the performance of dye-sensitized solar cells.
abstract: TiO2 mesoporous nanoparticles (NPs) doped with yttrium (Y) ions are fabricated via an environmentally friendly and facile solvothermal method to serve as a photoanode for dye sensitized solar cells (DSSCs). X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and N2 adsorption-desorption tests are used to characterize the influence of yttrium dopant on the properties of TiO2 NPs. The prepared Y-doped TiO2 NPs show the anatase phase and exhibit Ti-O-Y bonds. The photovoltaic performance is primarily associated with the morphological parameters of the NPs. At the optimum Y concentration of 3 at%, the short circuit current density increased from 13.20 to 15.74 mA cm(-2), full sun solar power conversion efficiencies increased from 6.09% up to 7.61% as compared to the blank DSSC.
authors.affiliation: Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, P. R. China. wangjsh@bjut.edu.cn lhy06@bjut.edu.cn.
authors.forename: Bingxin
authors.initials: B
authors.lastname: Zhao
authors.forename: Jinshu
authors.initials: J
authors.lastname: Wang
authors.forename: Hongyi
authors.initials: H
authors.lastname: Li
authors.forename: Hong
authors.initials: H
authors.lastname: Wang
authors.forename: Xinjian
authors.initials: X
authors.lastname: Jia
authors.forename: Penglei
authors.initials: P
authors.lastname: Su