Transparent conducting tin oxide (SnO₂) thin film has been deposited on glass substrate by spray pyrolysis technique. The spray pyrolysis technique using material tin chloride solution (SnCl4.5H₂O) starts at different substrate temperature. The XRD result shows a regular, smooth morphology. The deposited film was found to be polycrystalline. The average grain size of SnO₂ was found to be (12.6-20.2) nm as calculated by XRD using Debye Scherrer Formula. The optical absorption, transmittance and optical band gap have been measured. It was found that the average transmittance of the film is around 79% at substrate temperature 500ºC within wavelength range (300-800) nm. SnO₂ films have indirect piezoelectric phenomena where the particle was polarized when we applied an electrical current and its mechanical stress, hence the electrical force transformed into mechanical stress.
