화학공학소재연구정보센터
Journal of Vacuum Science & Technology B, Vol.15, No.4, 1468-1470, 1997
Photovoltaic Study of Nanocrystalline TiO2 Film-Modified with Dye Molecules
The nanocrystalline TiO2 film is modified simultaneously with porphyrin dye molecules and phthalocyanine dye molecules by chemical adsorption. Since porphyrin and phthalocyanine dye have different absorption character in the visible range, the TiO2 electrode sensitized by a combination of porphyrin and phthalocyanine dye molecules not only obtains a better spectral match to the solar spectrum, but also the photoresponse of the electrode is extended to cover most of the visible range. This kind of electrode exhibits a significant improvement of energy conversion efficiency.