PHOTOSENSITIZATION SYSTEMS OF COVALENTLY LINKED PHTHALOCYANINE COMPLEXES IN BOTH BILAYER LIPID MEMBRANES AND TIN OXIDE PHOTOVOLTAIC CELL |
| |
| Authors: | Zhi-Chu Bi Yue-Ying Qian Xin-Li Zhao Shu-Yin Shen Jia-Yong Yu Hui-Jun XU H Ti Tien |
| |
| Institution: | Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, China;Membrane Biophysics Laboratory, Department of Physiology, Michigan State University, East Lansing, MI 48824, USA |
| |
| Abstract: | Abstract Zinc phthalolocyanine photosensitized donor-acceptor systems for light energy conversion and for the design of photoelectrochemical molecular devices are presented. Covalently linked phthalocyanine complexes were incorporated in bilayer lipid membranes (BLM) and deposited on SnO2 transparent electrodes. Their photovoltages were measured and compared. It has been found that a more favorable orientation and closer proximity are attained in the diad compounds between the donor (phthalocyanine)-acceptor (anthraquinone) pair than in the reference compound for efficient light-induced charge separation and transfer. The triad compound is the best among all tested compounds. The decrease in the fluorescence yield and lifetime induced by quinones was examined and the apparent electron-transfer rate constants were calculated. |
| |
| Keywords: | |
|
|
