Fabrication and Characterisation of Titanium Dioxide (TiO2) with Different Synthesis Temperatures for Solar Cell Applications

Siti Kudnie, Sahari and ANDRE ANDING, TEDONG and Muhammad, Kashif and Abdul Rahman, Kram and Marini, Sawawi and Hasanah, Lilik and Kuryati, Kipli and Lee Chin, Kho (2023) Fabrication and Characterisation of Titanium Dioxide (TiO2) with Different Synthesis Temperatures for Solar Cell Applications. ASM Science Journal, 18. pp. 1-7. ISSN 2682-8901

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Abstract

In this investigation, the effects of various synthesis temperatures of titanium dioxide (TiO₂) on the structural, optical, and electrical properties of Dye-Sensitised Solar Cell (DSSC) were investigated. As an organic dye for DSSC, Beetroot plant was chosen. The TiO₂ solution was prepared using the sol-gel method and deposited on glass using the spin coating technique. Several compounds, including absolute ethanol, Titanium Isopropoxide (TTIP), Glacial Acetic Acid (GAA), Triton X-100, and deionised water, were combined to create the TiO₂ solution. Using a Scanning Electron Microscope (SEM), an Ultraviolet-Visible (UV-Vis) spectrometer, and a Keithely 2450 Sourcemeter, the structural, optical, and electrical properties of TiO₂ were determined. The results indicate that the TiO2 thin film synthesised at a temperature of 60°C has the most porous structure and the smallest particle size when compared to others. This temperature also produces TiO₂ with the sharpest peak absorption of 0.40 at a wavelength of 575.50 nm, resulting in a bandgap energy of 3.10 eV. Furthermore, it has a higher Field factor (FF) value that results in the highest energy conversion efficiency, ɳ of 0.34 %.

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