Synthesis of Zn-doped TiO2 microspheres with enhanced photovoltaic performance and application for dye-sensitized solar cells

被引：104

作者：

Zhang, Yu ^{[1
]}

Wang, Lingling ^{[1
,2
]}

Liu, Bingkun ^{[1
]}

Zhai, Jiali ^{[1
]}

Fan, Haimei ^{[1
]}

Wang, Dejun ^{[1
]}

Lin, Yanhong ^{[1
]}

Xie, Tengfeng ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Theoret & Computat Chem, Coll Chem, Changchun 130023, Peoples R China

[2] Jilin Univ, State Key Lab Supramol Struct & Mat, Coll Chem, Changchun 130012, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Zn-doped TiO2; Surface photovoltage; Dye-sensitized solar cells; EFFICIENCY; CONVERSION; LIGHT; FILMS; ELECTRODES; PARTICLES; BEADS;

D O I：

10.1016/j.electacta.2011.04.118

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Zn-doped TiO2 microspheres have been synthesized by introducing a trace amount of zinc nitrate hexahydrate to the reaction system. Scanning electron microscope (SEM), field-emission scanning electron microscope (FESEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) have been utilized to characterize the samples. Both surface photovoltage spectroscopy (SPS) technique based on lock-in amplifier and transient photovoltage (TPV) measurement reveal that the slight doping of Zn can promote the separation of photo-generated charges as well as restrain the recombination due to the strong interface built-in electric field and the decreasing of surface trap states. The photovoltaic parameters of dye-sensitized solar cells (DSSCs) based on Zn-doped TiO2 are significantly better, compared to that of a cell based on undoped TiO2. The relation between the performance of DSSCs and their photovoltaic properties is also discussed. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：6517 / 6523

页数：7

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