486
Y. Ooyama
14.2.10 Porphyrin Dyes
Porphyrin dyes can be one of the most efficient organic photosensitizers for DSSC
because of their strong Soret band (400–450 nm) and moderate Q band (550–600 nm)
photoabsorption properties. A series of zinc (Zn) tetraphenylporphyrins Zn-3, Zn5, Zn-8, Zn-11, and Zn-13 bearing a conjugated peripheral chain with one or two
carboxyl groups were synthesized, and a detailed investigation of the photovoltaic
performances of their DSSCs was reported (Fig. 14.15) (Wang et al. 2005a). The
TiO 2 DSSC based on Zn3 showed the following remarkable performance: J sc =
13.5 mA cm
−2 , V oc = 560 mV, and η = 5.2%. A series of porphyrin sensitizers
Fig. 14.15 Chemical structures of porphyrin dye sensitizers for TiO 2 DSSCs
Y. Ooyama
14.2.10 Porphyrin Dyes
Porphyrin dyes can be one of the most efficient organic photosensitizers for DSSC
because of their strong Soret band (400–450 nm) and moderate Q band (550–600 nm)
photoabsorption properties. A series of zinc (Zn) tetraphenylporphyrins Zn-3, Zn5, Zn-8, Zn-11, and Zn-13 bearing a conjugated peripheral chain with one or two
carboxyl groups were synthesized, and a detailed investigation of the photovoltaic
performances of their DSSCs was reported (Fig. 14.15) (Wang et al. 2005a). The
TiO 2 DSSC based on Zn3 showed the following remarkable performance: J sc =
13.5 mA cm
−2 , V oc = 560 mV, and η = 5.2%. A series of porphyrin sensitizers
Fig. 14.15 Chemical structures of porphyrin dye sensitizers for TiO 2 DSSCs