Fabrikasi Lapisan TiO2 menggunakan Metode Spin-Coating dengan Variasi Pengadukan dan Karakterisasi Sifat Optisnya Vicran Zharvan, Risqa Daniyati, Hadi Santoso, Nur Ichzan Aminuddin Siantang, Gatut Yudoyono, Darminto

Abstract

Fabrication of TiO₂ film has been conducted. TiO₂ nanopowders were prepared by co-precipitation method from TiCl₃ as a precursor by varying their mixing time duration 5, 10 and 25 hours. TiO₂ nanopowders were checked using XRD to examine their structure and having anatase phase with crystalline size of 11.8 nm, 10.7 nm and 9.6 nm respectively for the corresponding mixing duration. TiO₂ film were fabricated using spin coating method then checked using XRD, SEM and UV-Vis spectrophotometer to examine their structure, morphology and optical properties. The prepared films also contain an anatase phase of TiO₂ with non-uniform morphology and their respective band gap value are 3.99 ± 0.2 eV, 3.98 ± 0.2 eV and 3.97 ± 0.2 eV depending on the powders and their treatment.