Chemical Sintering of Nanoparticles: A Methodology for Low-Temperature Fabrication of Dye-Sensitized TiO2 Films


  • This work was supported in part by the Korea Ministry of Information and Communication (MIC) under Contract 2004-S-081 and the Korea Ministry of Commerce, Industry and Energy (MOCIE) under Contract 2004–12–0063–0–000. Supporting Information is available online from Wiley InterScience or from the author.


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A binder-free nanocrystalline TiO2 paste with high viscosity (see Figure) has been developed using non-thermal sintering conditions to deposit a TiO2 film with good interparticle connectivity. A dye-sensitized TiO2 film dried at 150 °C demonstrates an overall conversion efficiency of 3.52 % under AM 1.5 (1000 W m–2) illumination. The binder-free TiO2 paste is expected to be utilizable in flexible dye-sensitized solar cells.