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Photoexcitations in Poly(2,5-Thienylene Vinylene)

  • I. D. W. Samuel (a1), A. J. Brassett (a1), N. F. Colaneri (a1), R. A. Lawrence (a1), D. D. C. Bradley (a1), K. E. Meyer (a1), R. H. Friend (a1), H. Murata (a2), S. Tokito (a2), T. Tsutsui (a2) and S. Saito (a2)...

Abstract

Poly(2,5-thienylene vinylene), PTV, can be conveniently prepared via a precursor route to give coherent films suitable for optical measurements. Photoexcitation above the band gap at 1.8 eV gives rise to two transient absorption peaks at 0.44 eV and 1.0 eV that are associated with bipolarons that live for times of order a few ms at 80 K. Photoluminescence, comparable in intensity to the Raman scattering, is found at energies above the band edge, and we assign this to a hot recombination process. Pump and probe measurements of the induced bleaching at 2 eV show a very fast rise and initial fall time, which are within the 100 fsec resolution of the measurement.

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1. Fesser, K., Bishop, A.R., Campbell, D.K., Phys.Rev.B 27, 4804 (1983).
2. Brazovskii, S. and Kirova, K., JETP Lett. 33,4 (1981).
3. Heeger, A. J., Kivelson, S., Schrieffer, J. R., Su, W-P., Rev. Mod. Phys. 60, 781 (1988).
4. Friend, R. H., Bradley, D. D. C., Townsend, P. D., J. Phys. D: Appl.Phys. 20, 1367 (1987).
5. Vardeny, Z., Ehrenfreund, E., Brafman, O., Nowak, M., Schaffer, H., Heeger, A. J. and Wudl, F., Phys. Rev. Lett. 56, 671 (1986).
6. Kim, Y. H., Spiegel, D., Hotta, S. and Heeger, A. J., Phys. Rev. B38, 5490 (1988).
7. Rüne, J., Colaneri, N. F., Bradley, D. D. C., Friend, R. H. and Wegner, G. (to be published).
8. Bradley, D. D. C., J. Phys. D: Appl. Phys. 20, 1389 (1987).
9. Yamada, S., Tokito, S., Tsutsui, T., Saito, S., J. Chem. Soc., Chem. Commun. 1448 (1987) .
10. Tokito, S., Momii, T., Murata, H., Tsutsui, T., Saito, S., Polymer (in press).
11. Bradley, D. D. C., Colaneri, N. F., Friend, R. H., Synthetic Metals 29, E121 (1989).
12. Brassett, A. J., Colaneri, N. F., Bradley, D. D. C., Lawrence, R. A., Friend, R. H., Murata, H., Tokito, S., Tsutsui, T. and Saito, S. (preprint).
13. Foster, C.M., Kim, Y. H., Uotani, N. and Heeger, A. J., Synthetic Metals 29, E135 (1989).
14. Orenstein, J., Baker, G. L. and Vardeny, Z., J. Physique Colloq. 44, C3–407 (1983).
15. Colaneri, N. F., Friend, R. H.. Schaffer, H. E. and Heeger, A. J., Phys. Rev. B38, 3960 (1988) .
16. Shank, C. V., Yen, R., Orenstein, J. and Baker, G. L., Phys. Rev. B28, 6095 (1983).
17. Vardeny, Z., Strait, J., Moses, D., Chung, T-C. and Heeger, A. J., Phys. Rev. Lett. 49, 1657 (1982).
18. Vardeny, Z., Grahn, H. T., Heeger, A. J. and Wudl, F., Synthetic Metals 28, C299 (1989).
19. Greene, B. I.,Orenstein, J., Millard, R. R. and Williams, L. R., Phys. Rev. Lett. 58, 2750 (1987).

Photoexcitations in Poly(2,5-Thienylene Vinylene)

  • I. D. W. Samuel (a1), A. J. Brassett (a1), N. F. Colaneri (a1), R. A. Lawrence (a1), D. D. C. Bradley (a1), K. E. Meyer (a1), R. H. Friend (a1), H. Murata (a2), S. Tokito (a2), T. Tsutsui (a2) and S. Saito (a2)...

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