Antenna sensitizer molecular device

Figure 2 Example of antenna-sensitizer molecular devices on 2.

Figure 8. Antenna-sensitizer molecular devices for light harvesting in photoelectrochemical cells...

Fig. 26. Schematic representation of the behavior of an antenna-sensitizer molecular device on a semiconductor surface.

From the whole of the electrochemical, spectroscopic and photophysical infonnation. achieved from these and previous studies, it has been possible to designed an antenna sensitizer trinuclear complex NC-Ru (bpy)j-CN-Ru°(bpy(COO)j)j-NC-Ru (bpy)2.ChP, which has been shown to perform as an efficient molecular device for the sensitization of semiconductor electrodes in the visible region [16-19]. 

Taking the imaginative, though somewhat futuristic approach out-lined in Section 1.4, some of the polynuclear complexes discussed in this article can be viewed as very simple photochemical molecular devices. Examples are the Ru(II)-Cr(III) chromophore-luminophore systems of Section 4, which perform the function of spectral sensitization (Fig 7a). The coupling of the systems for photoinduced electron transfer and charge shift described in Section 3 could lead to triads for photoinduced charge separation (Fig 7b). The trichromophoric systems described in section 5.2 can be viewed as very simple examples of the antenna effect (Fig. 7a), while the longer chain-like systems of Section 5.2 could be considered as "molecular optical fibers" suitable for remote photosensitization (Fig. 7a) and other related functions. The system described in Section 5.3, on the other hand, couples antenna effect and photoinduced electron transfer into an antenna-sensitizer function. 

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