Novel Photoanode Structure Templated from Butterfly Wing Scales
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- 作者：Wang Zhang ; Di Zhang ; Tongxiang Fan ; Jiajun Gu ; Jian Ding ; Hao Wang ; Qixin Guo ; Hiroshi Ogawa
- 刊名：Chemistry of Materials
- 出版年：2009
- 出版时间：January 13, 2009
- 年：2009
- 卷：21
- 期：1
- 页码：33-40
- 全文大小：522K
- 年卷期：v.21,no.1(January 13, 2009)
- ISSN：1520-5002
文摘
We studied a novel photoanode structure inspired by butterfly wing scales with potential application on dye-sensitized solar cell in this paper. Quasi-honeycomb like structure (QHS), shallow concavities structure (SCS), and cross-ribbing structure (CRS) were synthesized onto a fluorine-doped tin-oxide-coated glass substrate using butterfly wings as biotemplates separately. Morphologies of the photoanodes, which were maintained from the original butterfly wings, were characterized by scanning and transmission electron microscopies. The results show that the calcined photoanodes with butterfly wings’ structures, which comprised arranged ridges and ribs consisting of nanoparticles, were fully crystallined. Analysis of absorption spectra measurements under visible light wavelength indicates that the light-harvesting efficiencies of the QHS photoanode were higher than the normal titania photoanode without biotemplates because of the special microstructures, and then the whole solar cell efficiency can be lifted based on this.