Effect of different distance on SNoz thin films using electrospraying method / Nur Syamimie Zulkifli

This work investigated the effect of different distance between needle tip and collector by electrospraying method of SnO2 thin film on electrical, physical and optical properties. SnO2 solution was prepared by dissolved SnCl2H2O (Tin (II) Chloride dihydrate) in absolute ethyl alcohol. It were annealed at 500°C for 1 hour in a furnace. Distance is one of the parameter that will affect properties of SnO2. The distance between needle tip and collector will affect the structure for surface morphology on thin films. The closer distance will affect the increasing grain size of the nanoparticles. The surphace morphology of deposited layer were observed using Field Emission Scanning Electron Microscope (FESEM). Meanwhile, UV-Vis was to observe its optical properties. The optical transmittance showed that the further distances will resulted high transmittance in the visible light region (300nm- 800nm). The deposited sample was then tested using an IV equipments to see its response on the voltage and current and analyse its electrical property. It was recorded that the decreasing of distance can increase the I-V for the electrical properties.