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 |
|---|---|
| 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
Multistep photoinitiated charge separation in a molecular pentad. / Moore, Thomas A; Gust, John Devens; Moore, Ana L; Lee, Seung Joo; Bittersmann, Edith; Luttrull, David K.; DeGraziano, Janice M.; Ma, Xiaochun C.; Gao, Feng.
Proceedings of the Annual Conference on Engineering in Medicine and Biology. pt 4. ed. Publ by IEEE, 1990. p. 1737-1738.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Multistep photoinitiated charge separation in a molecular pentad
AU - Moore, Thomas A
AU - Gust, John Devens
AU - Moore, Ana L
AU - Lee, Seung Joo
AU - Bittersmann, Edith
AU - Luttrull, David K.
AU - DeGraziano, Janice M.
AU - Ma, Xiaochun C.
AU - Gao, Feng
PY - 1990
Y1 - 1990
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0025552336&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025552336&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0025552336
SN - 0879425598
SP - 1737
EP - 1738
BT - Proceedings of the Annual Conference on Engineering in Medicine and Biology
PB - Publ by IEEE
ER -