| AVS 55th International Symposium & Exhibition | |
| Nanometer-scale Science and Technology | Tuesday Sessions |
| Session NS-TuP |
| Session: | Poster Session |
| Presenter: | W.S. Yun, Korea Research Institute of Standards and Science |
| Authors: | S.B. Yoon, Korea Research Institute of Standards and Science Y.H. Kim, Korea Research Institute of Standards and Science K. Kim, Korea Research Institute of Standards and Science B.-C. Woo, Korea Research Institute of Standards and Science S.J. Chung, Korea Research Institute of Biosience and Biotechnology W.S. Yun, Korea Research Institute of Standards and Science |
| Correspondent: | Click to Email |
Three-dimensionally (3D) periodic macroporous TiO2 thin film was fabricated by using polystyrene sulfonate (PSS) nanoparticle as an organic template and titanium alkoxide as a TiO2 precursor on fluorine-doped tin oxide (FTO) glass. Close-packed colloidal crystalline thin film composed of PSS nanoparticles was prepared by using 2D deposition technique. The TiO2 precursor was immersed into the void space between PSS nanoparticles and subsequently in-situ hydrolysis and condensation were performed. The nanocomposite of PSS nanoparticles and amorphous TiO2 was calcined to remove the organic materials and to crystallize the amorphous TiO2 to anatase type at 450℃ under air flowing. Resultant anatase TiO2 thin film was exhibited the 3D periodic macroporous framework with connecting windows. Photovoltaic cells composed of the Ru-dye coated 3D periodic macroporous anatase TiO2 thin film were fabricated and their energy conversion efficiency was also investigated.