Thermal behavior of ITO/TiO2/CdS/CdTe solar cells

In this work, a TiO₂ thin film was deposited as a buffer layer onto ITO film at front contact of CdS/CdTe solar cell. The TiO₂ thin film was prepared by reactive rf-sputtering from a Ti target. The CdTe film was grown by conventional CSS technique. The cells were activated by annealing at 400 °C in Argon-Oxygen-CHClF₂ atmosphere. From DRX analysis of TiO₂ thin film was determinate that it has Rutile phase. The solar cell was characterized by J-V curve and Efficiency vs Temperature, the latter was nonlinear. The solar cell efficiency was around 9.5% at room temperature.