Triplet energies of pi-conjugated polymers

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

doi:10.1103/physrevlett.86.1358

Triplet energies of pi-conjugated polymers

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

Authors

Professor Andrew Monkman a.p.monkman@durham.ac.uk
Professor

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	Feb 1, 2001
Deposit Date	Sep 10, 2007
Publicly Available Date	Aug 2, 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.