Journal of Materials Science

, Volume 44, Issue 15, pp 3997–4002 | Cite as

Fabrication of mesoporous titania aerogel film via supercritical drying

  • Won Ju Sung
  • Sang-Hoon Hyun
  • Dong-Hyun Kim
  • Doo-Soo Kim
  • Jungho Ryu


Using a supercritical drying method, fluorine-doped tin oxide (FTO) glass was coated with a mesoporous titania aerogel film prepared from titania sols with viscosity between 10 and 60 cP that had been spin coated, immersed in IPA solution, and aged at least 3 weeks. Mesoporous titania aerogel film has an anatase structure, and an average porosity of 76%. It is hydrophilic, and its mechanical strength is improved by heat treatment at over 400 °C for 2 h. After heat treatment, the film retains its anatase structure and has a porosity of 68%. Dye-sensitized solar cells were fabricated using these mesoporous titania aerogel films. The thickness of the film was about 1 μm and the highest photo conversion efficiency, obtained when the film was heat treated at 450 °C for 2 h, was 3.71%.


TiO2 TiO2 Film Power Conversion Efficiency TiO2 Particle Anatase Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by the Korea Electric Power Research Institute.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Won Ju Sung
    • 1
  • Sang-Hoon Hyun
    • 1
  • Dong-Hyun Kim
    • 2
  • Doo-Soo Kim
    • 2
  • Jungho Ryu
    • 2
  1. 1.School of Advanced Materials Science and Engineering, College of EngineeringYonsei UniversitySeoulRepublic of Korea
  2. 2.KEPRI, Korea Electric Power Research InstituteDaejeonRepublic of Korea

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