Journal
CHEMISTRY LETTERS
Volume 47, Issue 6, Pages 803-805Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.180198
Keywords
Titania nanosheet; Porphyrin; Dye sensitization
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A photoelectrode composed of Zn-porphyrin dye and semiconductor titania nanosheets (TNS, TiO89O2) where Zn-porphyrin was densely adsorbed without aggregation was fabricated. Efficient electron injection from excited Zn-porphyrin to TNS was observed under the irradiation of visible light. The absorbed photon to current conversion efficiency (APCE) was estimated to be 31%. Action spectra for the current coincided well with the absorption spectrum of Zn-porphyrin. These results indicate that TNS could act as an efficient n-type semiconductor.
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