Synthesis and application of TiO2 single-crystal nanorod arrays grown by multicycle hydrothermal for dye-sensitized solar cells

doi:10.1088/1674-1056/23/4/048104

中国物理B ›› 2014, Vol. 23 ›› Issue (4): 48104-048104.doi: 10.1088/1674-1056/23/4/048104

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Synthesis and application of TiO₂ single-crystal nanorod arrays grown by multicycle hydrothermal for dye-sensitized solar cells

朱建晶, 赵宇龙, 朱磊, 顾修全, 强颖怀

School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China

收稿日期:2013-08-13 修回日期:2013-10-09 出版日期:2014-04-15 发布日期:2014-04-15
基金资助:
Project supported by the Fundamental Research Funds for the Central Universities, China (Grant No. 2013XK07).

Synthesis and application of TiO₂ single-crystal nanorod arrays grown by multicycle hydrothermal for dye-sensitized solar cells

Zhu Jian-Jing (朱建晶), Zhao Yu-Long (赵宇龙), Zhu Lei (朱磊), Gu Xiu-Quan (顾修全), Qiang Ying-Huai (强颖怀)

School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China

Received:2013-08-13 Revised:2013-10-09 Online:2014-04-15 Published:2014-04-15
Contact: Zhao Yu-Long E-mail:sdyulong@cumt.edu.cn
About author:81.10.Aj; 68.55.-a; 42.25.Bs; 81.07.Gf
Supported by:
Project supported by the Fundamental Research Funds for the Central Universities, China (Grant No. 2013XK07).

摘要/Abstract

摘要： TiO₂ is a wide band gap semiconductor with important applications in photovoltaic cells. Vertically aligned TiO₂ nanorod arrays (NRs) are grown on the fluorine-doped tin oxide (FTO) substrates by a multicycle hydrothermal synthesis process. The samples are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and selected-area electron diffraction (SAED). It is found that dye-sensitized solar cells (DSSCs) assembled by the as-prepared TiO₂ single-crystal NRs exhibit different trends under the condition of different nucleation and growth concentrations. Optimum cell performance is obtained with high nucleation concentration and low growth cycle concentration. The efficiency enhancement is mainly attributed to the improved specific surface area of the nanorod.

关键词: TiO₂ single-crystal nanorod array, mild multicycle hydrothermal, dye-sensitized solar cell, low growth cycle concentration

Abstract: TiO₂ is a wide band gap semiconductor with important applications in photovoltaic cells. Vertically aligned TiO₂ nanorod arrays (NRs) are grown on the fluorine-doped tin oxide (FTO) substrates by a multicycle hydrothermal synthesis process. The samples are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and selected-area electron diffraction (SAED). It is found that dye-sensitized solar cells (DSSCs) assembled by the as-prepared TiO₂ single-crystal NRs exhibit different trends under the condition of different nucleation and growth concentrations. Optimum cell performance is obtained with high nucleation concentration and low growth cycle concentration. The efficiency enhancement is mainly attributed to the improved specific surface area of the nanorod.

Key words: TiO₂ single-crystal nanorod array, mild multicycle hydrothermal, dye-sensitized solar cell, low growth cycle concentration

中图分类号: (Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)

81.10.Aj

68.55.-a (Thin film structure and morphology) 42.25.Bs (Wave propagation, transmission and absorption) 81.07.Gf (Nanowires)

朱建晶, 赵宇龙, 朱磊, 顾修全, 强颖怀. Synthesis and application of TiO₂ single-crystal nanorod arrays grown by multicycle hydrothermal for dye-sensitized solar cells[J]. 中国物理B, 2014, 23(4): 48104-048104.

Zhu Jian-Jing (朱建晶), Zhao Yu-Long (赵宇龙), Zhu Lei (朱磊), Gu Xiu-Quan (顾修全), Qiang Ying-Huai (强颖怀). Synthesis and application of TiO₂ single-crystal nanorod arrays grown by multicycle hydrothermal for dye-sensitized solar cells[J]. Chin. Phys. B, 2014, 23(4): 48104-048104.

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Synthesis and application of TiO₂ single-crystal nanorod arrays grown by multicycle hydrothermal for dye-sensitized solar cells

Synthesis and application of TiO₂ single-crystal nanorod arrays grown by multicycle hydrothermal for dye-sensitized solar cells

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