Characterization of Mesoporous TiO2 Nanocrystalline Films for High Performance of Dye-Sensitized Solar Cells = Characterization of Mesoporous TiO2 Nanocrystalline Films for High Performance of Dye-Sensitized Solar Cells

다국어 초록 (Multilingual Abstract)

Titanium dioxide (TiO2) thin films were deposited by sol-gel method with surfactant-assisted mechanism and its application for dye-sensitized solar cells (DSSCs) was investigated. Brunauer-Emmertt-Teller (BET), X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) techniques were used to characterize the surface characteristics of thin films. Photovoltaic-current density measurements were carried out to determine the photoelectrochemical properties of the thin films and the performance of DSSCs. Energy conversion efficiency of about 6.1% has been achieved for cell with conductive glass under illumination with AM 1.5 (100 mWcm(-2)) simulated sunlight. Investigations had showed higher photo-energy conversion efficiency for mesoporous TiO2 nanocrystalline films used in DSSCs relatively to commercially available Degussa P25 films.