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Even Parity States in Ppv, Polythiophene and Polysilanes

Published online by Cambridge University Press:  16 February 2011

F. Guo ,
M. Chandross  and
S. Mazumdar
F. Guo
Affiliation:
University of Arizona, Department of Physics, Tucson, AZ 8572
M. Chandross
Affiliation:
University of Arizona, Department of Physics, Tucson, AZ 8572
S. Mazumdar
Affiliation:
University of Arizona, Department of Physics, Tucson, AZ 8572
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Abstract

Two photon absorptions (TPA) in conjugated polymers with large bond alternation are reinterpreted. TPA to the 2Ag in long chains should be tiny due to cancellation effects, and therefore the observed strong, narrow TPA is to a higher even parity state. We also present the first theoretical evidence for bound biexcitons, and explain recent photoinduced absorption data.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 328: Symposium Q – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1993 , 787
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

1. Hudson, B.S., Kohler, B.E. and Schulten, K.S., in Excited States, Vol. 6, edited by Lim, E.C. (Academic, New York, 1982), pp. 1–96.Google Scholar
2. Stegeman, G.I. et al., in present proceedings.Google Scholar
3. Soos, Z.G. and Ramasesha, S., Phys. Rev. B 29, 5410 (1984);Google Scholar
Tavan, P. and Schulten, K., Phys. Rev. B 36, 4337 (1987).CrossRefGoogle Scholar
4. Dixit, S.N., Guo, D. and Mazumdar, S., Phys. Rev. B 43, 6781 (1991);Google Scholar
Guo, D., Mazumdar, S. et al, Phys. Rev. B 48, 1433 (1993).CrossRefGoogle Scholar
5. Guo, F. and Mazumdar, S., J. Chem. Phys. (in press);Google Scholar
Guo, F., Guo, D. and Mazumdar, S., Phys. Rev. B (in press).Google Scholar
6. Baker, C.J., Gelsen, O.M. and Bradley, D.D.C., Chem. Phys. Lett. 201, 127 (1993).CrossRefGoogle Scholar
7. Pffefer, N., Raimond, P., Charra, F., and Nunzi, J., Chem. Phys. Lett., 201, 357, (1993)CrossRefGoogle Scholar
8. Periasamy, N., Danielli, R., Ruani, G., Zamboni, R., and Taliani, C., Phys. Rev. Lett., 68, 919, 1992.Google Scholar
9. Thorne, J.R.G., Ohsako, Y., Zeigler, J.M. and Hochstrasser, R.M., Chem. Phys. Lett. 162, 455 (1989).Google Scholar
10. Soos, Z.G. and Kepler, R.G., Phys. Rev. B 43, 11908 (1991).Google Scholar
11. Soos, Z.G., Ramasesha, S. and Galvao, D.S., Phys. Rev. Lett. 71, 1609 (1993).Google Scholar
12. Leng, J.M., Jeglinski, S., Wei, X., Benner, R.E., Vardeny, Z.V., Guo, F. and Mazumdar, S., submitted to Phys. Rev. Lett. (1993).Google Scholar
13. Mazumdar, S., Guo, D. and Dixit, S.N., J. Chem. Phys. 96, 6862 (1992);Google Scholar
Mazumdar, S., Guo, F., Guo, D., Ung, K.C., Tinka Gammel, J., in Proceedings of Discussion Meeting on Strongly Correlated Electron Systems in Chemistry, Bangalore, India (1993).Google Scholar
14. Sinclair, M.B., McBranch, D., Hagler, T.W. and Heeger, A.J., Synth. Metals, 49–50, 593 (1992).Google Scholar
15. Kobayashi, T., Synth. Metals, 49–50, 565 (1992).Google Scholar
16. Kuwata-Gonokami, M., Peyghambarian, N., Meissner, K., Fluegel, B., Sato, Y., Ema, K., Shimano, R., Mazumdar, S., Guo, F., Tokihiro, T., Ezaki, H. and Hanamura, E., Nature (in press).Google Scholar