Dye-sensitized Solar Cells Based on TiO₂ Nanotube/Nanoparticle Composite as Photoanode and Cu₂SnSe₃ as Counter Electrode

摘要

Dye-sensitized solar cells (DSSCs) based on TiO2 nanotube/nanoparticle (NT/NP) photoanodes andCu2SnSe3 (CTSe) counter electrodes were fabricated. The effect of the thickness of the CTSe films onthe DSSC performance was investigated. It was found that DSSC efficiencies firstly increased and thendecreased with increasing the film thickness. The optimized DSSC efficiency of 3.14% was achievedat a suitable film thickness (2.9 m). This work presents a new approach for developing low-costalternative for expensive Pt in TiO2-nanotube-based DSSCs.