Research Article
Effect of Solar Energy and Furnace on the Characterization of Purple Cabbage on TiO2 – Cu2O Semiconductors Using the Dr Blade – Spin Coating Method as a Renewable
@INPROCEEDINGS{10.4108/eai.16-9-2025.2361047, author={Abdul Rais and Yuni Warti and Erni Halawa}, title={Effect of Solar Energy and Furnace on the Characterization of Purple Cabbage on TiO2 -- Cu2O Semiconductors Using the Dr Blade -- Spin Coating Method as a Renewable }, proceedings={Proceedings of the 7th International Conference on Innovation in Education, Science, and Culture, ICIESC 2025, 16 September 2025, Medan, Indonesia}, publisher={EAI}, proceedings_a={ICIESC}, year={2026}, month={3}, keywords={tio2 -- cu2o semiconductor orange paprika - purple cabbage dye synthesis dehydrolysis and thin films fto}, doi={10.4108/eai.16-9-2025.2361047} }- Abdul Rais
Yuni Warti
Erni Halawa
Year: 2026
Effect of Solar Energy and Furnace on the Characterization of Purple Cabbage on TiO2 – Cu2O Semiconductors Using the Dr Blade – Spin Coating Method as a Renewable
ICIESC
EAI
DOI: 10.4108/eai.16-9-2025.2361047
Abstract
This study reports the synthesis and characterization of TiO2–Cu2O-based FTO coatings using diethanolamine, methanol, antimony chloride, and isopropanol precursors. The TiO2–Cu2O layers were prepared via the Dr. Blade–Spin Coating method and subjected to dehydration at 350°C, 450°C, and 550°C. Structural, morphological, and optical properties were examined using X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX), Fourier-transform infrared spectroscopy (FTIR), and UV-Vis spectrophotometry. XRD analysis revealed decreasing crystal sizes with increasing temperature, ranging from 105.21 nm at 350°C to 64.34 nm at 550°C. SEM-EDX confirmed compositional variations, while UV-Vis analysis demonstrated efficient absorption of Paprika Orange and Purple Cabbage dyes in the visible region. Results indicate that higher dehydration temperatures significantly improve the absorbance, crystal structure, and morphology of the TiO2–Cu2O coatings, enhancing their potential performance in solar cell applications. Optimal properties were observed at 450°C and 550°C.
