Fabrication of Nanosheet/Nestlike Nanoarray Hierarchical TiO_2 Film for Dye-Sensitized Solar Cell

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	Fabrication of Nanosheet/Nestlike Nanoarray Hierarchical TiO_2 Film for Dye-Sensitized Solar Cell
	Chang Menglei; Li Xinjun
	2012
Source Publication	Acta Physica-Chimica Sinica
ISSN	1000-6818
Volume	28 Issue:6 Pages:1368
Abstract	A hierarchical configuration of TiO_2 nanoarray film,comprising a nestlike TiO_2 nanoarray layer integrated with a nanosheet network overlayer,was constructed.The hierarchical TiO_2 film was obtained by the post-hydrothermal treatment with NaOH solution on hydrothermally synthesized TiO_2-derived nanostructured arrays grown on fluorine-doped tin oxide substrate(FTO).The TiO_2 films were characterized by field-emission scanning electron microscope(FE-SEM),X-ray diffraction(XRD),ultraviolet-visible(UV-Vis) diffuse reflectance spectroscopy,and absorbance spectroscopy.FE-SEM shows that the hierarchical TiO_2 film with a thickness of 1.5 μm is composed of a nanosheet overlayer(~0.2 μm height) and the nestlike nanoarray layer(~1.3 μm height).XRD patterns display that the TiO_2 films have pure anatase phase structure.UV-Vis spectra reveal enhanced light scattering and dye adsorption ability of the hierarchical TiO_2 film.For the dye-sensitized solar cell(DSSC) based on the nanosheet/nestlike nanoarray hierarchical TiO_2 film,a short-circuit current(J_(sc)) of 7.79 mA.cm~(-2),open-circuit voltage(V_oc) of 0.80 V,fill factor(FF) of 0.40,and photoelectric conversion efficiency(η) of 2.48% are achieved.Within the dye-sensitized solar cell,the photoelectric conversion efficiency of the hierarchical TiO_2 film was nearly ten times higher than that of nanostructured array film.
Keyword	纳米片/巢状纳米阵列水热合成染料敏化太阳能电池光电转换
Language	英语
Document Type	期刊论文
Identifier	http://ir.giec.ac.cn/handle/344007/34062
Collection	中国科学院广州能源研究所
Affiliation	中国科学院广州能源研究所
First Author Affilication	GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation GB/T 7714	Chang Menglei,Li Xinjun. Fabrication of Nanosheet/Nestlike Nanoarray Hierarchical TiO_2 Film for Dye-Sensitized Solar Cell[J]. Acta Physica-Chimica Sinica,2012,28(6):1368.
APA	Chang Menglei,&Li Xinjun.(2012).Fabrication of Nanosheet/Nestlike Nanoarray Hierarchical TiO_2 Film for Dye-Sensitized Solar Cell.Acta Physica-Chimica Sinica,28(6),1368.
MLA	Chang Menglei,et al."Fabrication of Nanosheet/Nestlike Nanoarray Hierarchical TiO_2 Film for Dye-Sensitized Solar Cell".Acta Physica-Chimica Sinica 28.6(2012):1368.

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