STUDY OF SENSITIZATION OF THERMALLY-SYNTHESIZED TiO2 POWDERS FOR NATURAL DYE SENSITIZED SOLAR CELL (DSSC)
<p>Nanocrystalline TiO2 powders were prepared in ethanol by thermal sol-gel method using an aqueous solution<br /> of titanium(IV) tetraisopropoxide as precursor. Synthesis was done without surfactants. The prepared TiO2 powders<br /> were analyzed by X-ray diffraction (XRD) to det...
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[Yogyakarta] : Fak. MIPA Universitas Gadjah Mada
2007
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| Summary: | <p>Nanocrystalline TiO2 powders were prepared in ethanol by thermal sol-gel method using an aqueous solution<br />
of titanium(IV) tetraisopropoxide as precursor. Synthesis was done without surfactants. The prepared TiO2 powders<br />
were analyzed by X-ray diffraction (XRD) to determine the phase and composition of the crystalline powders, FTIR<br />
to identify their functional groups. Morphology of the powders was observed using Scanning Electron Microscopy.<br />
Isotherm of N2 adsorption-desorption analysis was performed to identify surface area and porosity of TiO2 powders.<br />
Difractogram of titania powders shows that it consists of anatase. Sensitization study of natural dyes from fruit<br />
extract of duwet (Eugenia jambolana Lam) and wood extract of Tegeran (Maclura cochinensis) was performed on<br />
slip-casted TiO2 films prepared from the resultant TiO2 powders. The extracts of natural dyes in ethanol were<br />
adsorbed onto TiO2 film for 20 hours. Characterization of TiO2 film was performed by X &ndash |
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