THE EFFECT OF SOLAR ENERGY AND FURNACE ON THE CHARACTERIZATION OF PURPLE CABBAGE ON TiO2 /Cu2O SEMICONDUCTORS USING THE DR BLADE METHOD SPIN COATING AS A RENEWABLE ENERGY Abdul Rais, Yuni Warti, Erni Halawa
Universitas Negeri Medan
Abstract
The study looked at layers made of TiO2 Cu2O and FTO using semiconductor materials like diethanolamine, methanol, antimony chloride, and isopropanol. The process that was conducted is the synthesis of TiO₂--/Cu₂--O using Dr Blade method, spin coating and grinding the materials using a hot plate with a magnetic stirrer for one hour. The process culminated in the extraction of purple cabbage. The purpose of this study was to see the effect of absorbance, wavelength, crystal size structure, morphology, FTIR, and its treatment. Then TiO2, TiO2/Al, and TiO2/Al with Cu2O were calcined at temperatures of 400 C, 500 C, and 600 C. The tests carried out were characterised by UV-vis, XRD, SEM, EDX, and FTIR. The XRD, SEM - EDX, and FTIR analysis results for the TiO2 , TiO2 Al dan TiO2 Al as well as Cu2O Al Cu2O, heated at 400 C, 500 C, and 600 C that showed predicted spectrum results of 127.54, 135.64, and 139.75. In the XRD analysis, the results obtained for each temperature were 400 C, 500 C, and 600 C, with crystal sizes or wavelengths ranging from 65.34 nm to 86.21 nm to 105.21 nm. For the absorbance of the dye, the concentrations used were 6 M:6 M, 6 M:5 M, and 20 M:3 M. Each wavelength and absorbance range from 258 nm to 2.4 au, 235 nm to 2.3 au, and 260 nm to 1.6 au. The results from the UV-Vis spectrophotometer analysis showed that the TiO2- Cu2O layer was good at absorbing the purple cabbage dye when exposed to visible light. The change in dehydrolysis temperature shows that heating the TiO2- Cu2O layer impacts how well the solar cells work. The absorbance, wavelength, crystal size, and morphology values are optimal at 400 C and 500 C.
