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Ho-Gyeong Yun, Byeong-Soo Bae and Man Gu Kang A Simple and Highly Efficient Method for Surface Treatment of Ti Substrates for Use in Dye-Sensitized Solar Cells Advanced Energy Materials 1

Article first published online: 11 MAR 2011 | DOI: 10.1002/aenm.201000044

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Ti foil for use in dye-sensitized solar cells (DSSCs) is treated in a HNO3-HF solution. With the exception of cleaning, no additional pre- or post-treatment is performed. This surface-treatment method simultaneously improves electrical and optical behavior, resulting in a highly increased performance in terms of all figures of merit: Voc, Jsc, FF, and power conversion efficiency. An overall efficiency of 9.20% can be achieved by use of such HNO3-HF-treated Ti substrates in DSSCs.

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