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The photoinduced electron injection of protoporphyrin IX/TiO 2 thin film has been studied using time-resolved absorption and fluorescence spectroscopy. Steady state results showed that, adsorption of protoporphyrin IX onto the surface of TiO 2 particles extended its absorption further into the visible region; on the other hand the fluorescence of protoporphyrin IX/TiO 2 film...
Dye-sensitized solar cells (DSSCs) containing novel DP-T and DP-P organic sensitizers having thiophene and N-methyl pyrrole moieties as π bridges in a D–π–A system were assembled and characterized. Incorporation of a thiophene bridge to give sensitizer DP-T enhanced solar energy capture, while impedance spectroscopy showed a much longer electron recombination lifetime (τ) for the DSSCs based on pyrrole...
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