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Triplet energies of pi-conjugated polymers

Monkman, A.P.; Burrows, H.D.; Hartwell, L.J.; Horsburgh, L.E.; Hamblett, I.; Navaratnam, S.

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Authors

A.P. Monkman

H.D. Burrows

L.J. Hartwell

L.E. Horsburgh

I. Hamblett

S. Navaratnam



Abstract

Using pulse radiolysis and triplet energy transfer has enabled us to measure the triplet energies in a broad range of different pi -conjugated polymers. In all eases we find that the 1(3)B(u) is Of order 0.6 to 1 eV below the 1 B-1(u), indicative of localized triplet states with strong electron- electron correlation. We also observe that the 1(1)A(g)- 1(3)B(u), gap decreases linearly as the I(1)A(g)-1(1)B(u) gap decreases even though polymers with very different structure have been studied. This surprising result suggests that polymers with singlet gap <1.3 eV will have a triplet ground state.

Citation

Monkman, A., Burrows, H., Hartwell, L., Horsburgh, L., Hamblett, I., & Navaratnam, S. (2001). Triplet energies of pi-conjugated polymers. Physical Review Letters, 86(7), 1358-1361. https://doi.org/10.1103/physrevlett.86.1358

Journal Article Type Article
Publication Date 2001-02
Deposit Date Nov 27, 2006
Publicly Available Date Sep 13, 2010
Journal Physical Review Letters
Print ISSN 0031-9007
Electronic ISSN 1079-7114
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 86
Issue 7
Pages 1358-1361
DOI https://doi.org/10.1103/physrevlett.86.1358
Keywords Lowest singlet, States.

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© 2001 by The American Physical Society. All rights reserved.



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