Skip to main content Accessibility help
×
Home

Generation of Circularly Polarized Light of Highly Oriented Poly(P-Phenylene Vinylene)

  • A. Marletta (a1), D. Gonçalves, O. N. Oliveira, R. M. Faria and F. E. G. Guimarães...

Abstract

Langmuir-Blodgett (LB) films of poly(p-phenylene vinylene) (PPV) were prepared using an amphiphilic precursor, where the counterion chloride was partially replaced by a long chain dodecylbenzenesulfonate ion. These LB-PPV films are highly ordered along the dipping direction as demonstrated by linear dichroism experiments using linearly polarized optical absorption and emission. The intensity ratio between emitted light parallel and perpendicular to the dipping direction was ca. 17, which is much higher than the dichroic ratio of 3.6 found in the polarized absorption experiment. These values indicate an efficient energy and/or charge transfer between low conjugated segments (disordered) and highly conjugated (ordered) ones after excitation. In addition, the LB films displayed large circular polarization with an asymmetry factor ge which varies from 0.6 to –0.2 when the sample temperature is increased from 30 to 300 K.

Copyright

References

Hide All
1. Wu, A., Yokoyama, S., Watanabe, S., Kikimoto, M., Imai, Y., Araki, T., Iriyama, K., Thin Solid Films 244, 750 (1994).
2. Era, M., Kamiyama, K., Yoshiura, K., Momii, T., Murata, H., Tokito, S., Tsutsui, T., Saito, S., Thin Solid Films 179, 1 (1989).
3. Kalinowski, J., J. Phys. D: Appl. Phys 32, 179250 (1999).
4. McBranch, D., Campbell, I. H., Smith, D. L., Appl. Phys. Lett. 66, 1175 (1995).
5. Gagnon, D. R., Karasz, F. E., Thomas, E.L., Lenz, R. W., Synth. Met. 20, 85 (1987).
6. Montali, A., Bastiaansen, C., Smith, P., Weder, C., Nature 392, 261 (1998)
7. Dyreklev, P., Berggren, M., Inganäs, O., Andersson, M.R., Wennerström, O., Hjertberg, T., Adv. Mater. 43, 7 (1995).
8. Wan, W. M. V., Greenham, N. C., Friend, R. H., Synth. Met. 102, 1055 (1999).
9. Kim, Y. K., Kim, K.S., Kang, W. H., Yang, S. S., Sohn, B. C., Thin Solid Films 312, 291 (1998).
10. Marletta, A., Gonçalves, D., Oliveira, O. N. Jr., Faria, R. M., Guimarães, F. E. G., Macromolecules 33, 5886 (2000).
11. Marletta, A., Gonçalves, D., Oliveira, O.N. Jr., Faria, R.M., Guimarães, F. E. G., Adv. Mat. 12, 69 (2000).
12. Halliday, D. A., Burn, P. L., Friend, R. H., Bradley, D. D. C., Holmes, A. B., Synth. Met. 55–57, 954 (1993).
13. Obrzut, J., Karasz, F. E., J. Chem. Phys. 87, 2349 (1987).
14. Brazovskii, S., Kirova, N. and Bishop, A. R., Optical Materials 9, 465 (1998).

Generation of Circularly Polarized Light of Highly Oriented Poly(P-Phenylene Vinylene)

  • A. Marletta (a1), D. Gonçalves, O. N. Oliveira, R. M. Faria and F. E. G. Guimarães...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed