文章基本信息

标题：A General Method for Preparing Anatase TiO2 Treelike-Nanoarrays on Various Metal Wires for Fiber Dye-Sensitized Solar Cells
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作者：Liang Chu ; Luying Li ; Jun Su 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：4
期号：1
DOI：10.1038/srep04420
语种：English
出版社：Springer Nature
摘要：Anatase TiO₂ tree-like nanoarrays were prepared on various metal wires (Ti, W, Ni, etc.) through one-step facile hydrothermal reaction. The anatase TiO₂ tree-like nanoarrays consist of long TiO₂ nanowire trunks with direct charge transport channels, and a large number of short TiO₂ nanorod branches with large surface areas. Fiber dye-sensitized solar cells (FDSSCs) based on the anatase TiO₂ tree-like nanoarrays deposited on Ti wires can achieve outstanding power conversion efficiency (PCE) of 6.32%, while FDSSCs on W wires have lower PCE of 3.24% due to the formation of WO₃ layer, which might enhance recombination of charges. When the substrate is changed to a Nicole oxide wire, a novel p-n heterojunction can be obtained. This universal method is simple, facile, and low cost for preparing anatase TiO₂ treelike-nanoarrays on various metal wires, which may find potential applications in fabrication of optoelectronic devices.