Abstract
Pentads consisting of a diporphyrin moiety bearing both a carotenoid polyene and a diquinone are studied. It is shown that excitation of the porphyrin leads to the formation of a charge separated state with a quantum yield as high as 0.83 and a lifetime up to 340 μs, depending upon the structure of the pentad. The final charge separated state preserves over one-half of the initial excitation energy as chemical potential. This fact, coupled with the length of the molecules (ca. 80 angstrom), makes such photovoltaic species attractive candidates for incorporation into molecular electronic devices.
| Original language | English |
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| Title of host publication | Proceedings of the Annual Conference on Engineering in Medicine and Biology |
| Publisher | Publ by IEEE |
| Pages | 1737-1738 |
| Number of pages | 2 |
| Edition | pt 4 |
| ISBN (Print) | 0879425598 |
| Publication status | Published - 1990 |
| Event | Proceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Philadelphia, PA, USA Duration: Nov 1 1990 → Nov 4 1990 |
Other
| Other | Proceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
|---|---|
| City | Philadelphia, PA, USA |
| Period | 11/1/90 → 11/4/90 |
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ASJC Scopus subject areas
- Bioengineering
Cite this
Moore, T. A., Gust, J. D., Moore, A. L., Lee, S. J., Bittersmann, E., Luttrull, D. K., DeGraziano, J. M., Ma, X. C., & Gao, F. (1990). Multistep photoinitiated charge separation in a molecular pentad. In Proceedings of the Annual Conference on Engineering in Medicine and Biology (pt 4 ed., pp. 1737-1738). Publ by IEEE.