A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications

A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications

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This study examined the absorbance of ruthenium-doped nanocrystalline titanium dioxide GREEN COFFEE BEAN and its application to dye-sensitized solar cells (DSSCs).Avaspec 2.1 spectrophotometer revealed that ruthenium-dyed TiO2 can absorb light beyond the ultraviolet region.The well-known Tauc model was employed to determine the optical band gap.We observed that the optical band gap of the sensitized TiO2 was reduced, thus enabling the absorbance of the wide-band-gap semiconductor in the visible region.

The energy conversion efficiency of the DSSC prepared from the ruthenium-dyed KOREAN RED GINSENG TiO2 anode electrode was 1.71%.