Synthesis of Zn-doped TiO2 microspheres with enhanced photovoltaic performance and application for dye-sensitized solar cells
作者： Yu Zhang , Lingling Wang , Bingkun Liu , Jiali Zhai , Haimei Fan
DOI: 10.1016/J.ELECTACTA.2011.04.118
关键词: Scanning electron microscope 、 Dye-sensitized solar cell 、 Zinc 、 X-ray photoelectron spectroscopy 、 Field emission microscopy 、 Doping 、 Analytical chemistry 、 Surface photovoltage 、 Spectroscopy 、 Chemistry
摘要: Abstract Zn-doped TiO 2 microspheres have been synthesized by introducing a trace amount of zinc nitrate hexahydrate to the reaction system. Scanning electron microscope (SEM), field-emission scanning (FESEM), X-ray diffraction (XRD), and photoelectron spectroscopy (XPS) utilized characterize samples. Both surface photovoltage (SPS) technique based on lock-in amplifier transient (TPV) measurement reveal that slight doping Zn can promote separation photo-generated charges as well restrain recombination due strong interface built-in electric field decreasing trap states. The photovoltaic parameters dye-sensitized solar cells (DSSCs) are significantly better, compared cell undoped . relation between performance DSSCs their properties is also discussed.
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