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The fabrication of TiO2 nanoparticle/ZnO nanowire arrays bi-filmed photoanode and their effect on dye-sensitized solar cells
Wang, Meili; Wang, Yan; Li, Jingbo; Wang, M.(mlwang@semi.ac.cn)
2011
Source PublicationJournal of Sol-Gel Science and Technology
ISSN09280707
Pages1-7
AbstractPorous TiO2 nanoparticles coated on ZnO nanowire arrays(TiO2 NP/ZnO NW) as photoanode for dye-sensitized solar cell(DSSC) has been fabricated and investigated to improve the power conversion efficiency. The TiO2 NP/ZnO NW photoanode consists of single crystalline ZnO NWs synthesized via hydrothermal method and porous TiO2 NP film covered on the surface of ZnO NW arrays by screen printing technique. The effect of TiO2 NPs thickness of the bi-filmed photoanode on the cell performance has been investigated, and TiO2 NP/ZnO NW DSSC with NP thickness of~5μm exhibits the best efficiency of4.68%, higher than1.16% of ZnO NW DSSC and3.18% of TiO2 NPs DSSC, prepared and tested under identical conditions. The efficiency increase is attributed to the enlarged photocurrent, due to the greatly enhanced surface area for dye absorption and light harvesting efficiency resulted from TiO2 NPs, and improved open-circuit voltage, due to reduced electron recombination by providing direct conduction pathway along ZnO NWs.?2011 Springer Science+Business Media, LLC.
metadata_83半导体超晶格国家重点实验室
KeywordConversion Efficiency Efficiency Nanowires Open Circuit Voltage Photoelectrochemical Cells Titanium Dioxide Zinc Oxide
Subject Area半导体物理
Indexed ByEI
Language英语
Date Available2012-06-14
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/23050
Collection半导体超晶格国家重点实验室
Corresponding AuthorWang, M.(mlwang@semi.ac.cn)
Recommended Citation
GB/T 7714
Wang, Meili,Wang, Yan,Li, Jingbo,et al. The fabrication of TiO2 nanoparticle/ZnO nanowire arrays bi-filmed photoanode and their effect on dye-sensitized solar cells[J]. Journal of Sol-Gel Science and Technology,2011:1-7.
APA Wang, Meili,Wang, Yan,Li, Jingbo,&Wang, M..(2011).The fabrication of TiO2 nanoparticle/ZnO nanowire arrays bi-filmed photoanode and their effect on dye-sensitized solar cells.Journal of Sol-Gel Science and Technology,1-7.
MLA Wang, Meili,et al."The fabrication of TiO2 nanoparticle/ZnO nanowire arrays bi-filmed photoanode and their effect on dye-sensitized solar cells".Journal of Sol-Gel Science and Technology (2011):1-7.
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