4 January 2008 Structure design of nano-TiO2 electrode in dye-sensitized solar cells
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In dye-sensitized solar cells (DSSCs), the physical properties and microstructure of nano-titanium dioxide film electrode are the key factors to influence the photo-electric characters greatly and they are also determined by the preparation techniques. A new electrode of double-layer TiO2 with different structure was designed and prepared by spin-coating and screen-printing techniques alternately. Such two types of layers have different contribution to the photo-electric conversion functions. Compact TiO2 film made by spin-coating only absorbs little dyes, but it works as a barrier layer between ITO and electrolyte. The porous TiO2 film made by screen-printing will absorb more dyes, and results in higher photocurrent. At the end, the effect of the compact layer on I-V properties of the DSSCs was discussed.
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Ning Cai, Ying Zhao, Changchun Wei, Jian Sun, Shaozhen Xiong, "Structure design of nano-TiO2 electrode in dye-sensitized solar cells", Proc. SPIE 6841, Solid State Lighting and Solar Energy Technologies, 68411Q (4 January 2008); doi: 10.1117/12.759573; https://doi.org/10.1117/12.759573

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