Triplet energies of pi-conjugated polymers
Monkman, A.P.; Burrows, H.D.; Hartwell, L.J.; Horsburgh, L.E.; Hamblett, I.; Navaratnam, S.
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.
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|
|Deposit Date||Nov 27, 2006|
|Publicly Available Date||Sep 13, 2010|
|Journal||Physical Review Letters|
|Publisher||American Physical Society|
|Peer Reviewed||Peer Reviewed|
|Keywords||Lowest singlet, States.|
Published Journal Article
© 2001 by The American Physical Society. All rights reserved.