Vertically aligned ZnO nanowire arrays in Rose Bengal-based dye-sensitized solar cells

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• 作者：Basudev Pradhan ; Sudip K. Batabyal ; Amlan J. Pal
• 关键词：Dye-sensitized solar cells ; ZnO vertical nanowire arrays ; Organic dye ; Exciton dissociation ; Charge transport
• 刊名：Solar Energy Materials and Solar Cells
• 出版年：2007
• 出版时间：23 May 2007
• 年：2007
• 卷：91
• 期：9
• 页码：769-773
• 全文大小：516 K

文摘

We fabricate dye-sensitized solar cells (DSSC) using vertically oriented, high density, and crystalline array of ZnO nanowires, which can be a suitable alternative to titanium dioxide nanoparticle films. The vertical nanowires provide fast routes or channels for electron transport to the substrate electrode. As an alternative to conventional ruthenium complex, we introduce Rose Bengal dye, which acts as a photosensitizer in the dye-sensitized solar cells. The dye energetically matches the ZnO with usual KII₂ redox couple for dye-sensitized solar cell applications.