Zc. Bi et al., PHOTOSENSITIZATION SYSTEMS OF COVALENTLY-LINKED PHTHALOCYANINE COMPLEXES IN BOTH BILAYER-LIPID MEMBRANES AND TIN OXIDE PHOTOVOLTAIC CELL, Photochemistry and photobiology, 59(1), 1994, pp. 111-115
Zinc phthalolocyanine photosensitized donor-acceptor systems for light
energy conversion and for the design of photoelectrochemical molecula
r devices are presented. Covalently linked phthalocyanine complexes we
re incorporated in bilayer lipid membranes (BLM) and deposited on SnO2
transparent electrodes. Their photovoltages were measured and compare
d. It has been found that a more favorable orientation and closer prox
imity are attained in the diad compounds between the donor (phthalocya
nine)-acceptor (anthraquinone) pair than in the reference compound for
efficient light-induced charge separation and transfer. The triad com
pound is the best among all tested compounds. The decrease in the fluo
rescence yield and lifetime induced by quinones was examined and the a
pparent electron-transfer rate constants were calculated.