Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-14T04:59:03.214Z Has data issue: false hasContentIssue false
  • English
  • Français

Electroluminescence and Photoluminescence of Fluorene-Carbazole Copolymer

Published online by Cambridge University Press:  10 February 2011

O. Stephan  and
J.C. Vial
O. Stephan
Affiliation:
Laboratoire de Spectrométrie Physique, Université Joseph Fourier Grenoble 1 and CNRS (UMR C5588), 140 rue de la physique, B.P. 87 38402 Saint Martin d'Hères Cedex, France
J.C. Vial
Affiliation:
Laboratoire de Spectrométrie Physique, Université Joseph Fourier Grenoble 1 and CNRS (UMR C5588), 140 rue de la physique, B.P. 87 38402 Saint Martin d'Hères Cedex, France
Get access

Abstract

Thin layers of poly(dihexylfluorene-co-N-hexylcarbazole) sandwiched between ITO and aluminium electrodes show stable photoluminescence and electro-luminescence at room temperature and ambient atmosphere. I(V) and Electro-luminescence versus voltage curves present a much lower threshold than device made up of poly(dihexylfluorene) homopolymer. When using the copolymer, the barrier height for hole injection is reduced to a value close to 0.17 eV to be compared to 0.83 eV for the homopolymer. This difference in offsets has been confirmed by electrochemical investigations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 558: Symposium B – Flat-Panel Displays and Sensors-Principles, Materials… , 1999 , 299
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Kraft, A., Grimsdale, A.C., and Holmes, A.B., Angew. Chem. Int. Ed. 37 (1998) 402.Google Scholar
2. Siove, A., Ades, D., N'Gbilo, E. and Chevrot, C., Synth. Met. 38(1990) 331.Google Scholar
3. Colon, I. and Kwiatkowski, G.T., J. Polym. Sci. A 28 (1990) 367.Google Scholar
4. Klarner, G., Davey, M.H., Chen, W.-D., Scott, J.C. and Miller, R.D., Adv. Mater. 10 (1998) 993.Google Scholar
5. Grice, A.W., Bradley, D.D.C., Bernius, M.T., Inbasekaran, M., Wu, W.W. and Woo, E.P., Appl. Phys. Lett. 73 (1998) 629.Google Scholar
6. Yang, Y., Pei, Q., and Heeger, A.J., J. Appl. Phys. 79 (1996) 934.Google Scholar
7. Lmimouni, K., Legrand, C., Chapoton, A., Synth. Met. 97(1998) 151.Google Scholar
8. Yang, Y. and Heeger, A.J., Appl. Phys. Lett. 64 (1994) 1245.Google Scholar
9. Fukuda, M., Sawada, K. and Yoshino, K., J. Polym. Sci. A 31 (1993) 2465.Google Scholar
10. Faid, K., Ades, D., Siove, A. and Chevrot, C., Synth. Met. 63(1994) 89.Google Scholar