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Electroluminescent Diodes Using Cyclohexane-Based Glass Forming Liquid Crystals and Their Analogues

Published online by Cambridge University Press:  10 February 2011

C. P. Lin ,
T. Tsutsui ,
S. Saito ,
S. H. Chen ,
J. C. Mastrangelo  and
H. Shi
C. P. Lin
Affiliation:
Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan
T. Tsutsui
Affiliation:
Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan
S. Saito
Affiliation:
Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan
S. H. Chen
Affiliation:
University of Rochester, Center for Optoelectrons and Imaging, Rochester, NY 14623-1212
J. C. Mastrangelo
Affiliation:
University of Rochester, Center for Optoelectrons and Imaging, Rochester, NY 14623-1212
H. Shi
Affiliation:
University of Rochester, Center for Optoelectrons and Imaging, Rochester, NY 14623-1212
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Abstract

Organic electroluminescent(EL) diodes using spin-coat films of cyclohexane-based glass-forming liquid crystal (LC) materials were fabricated. The cyclohexane-based LC materials were found to be useful for EL diodes. Blending the LC materials with charge transport molecules was found to be a promising method for improving device performance. Conventional hole transport and electron transport molecules were found to show a tendency to form exciplexes with cyclohexanebased LC materials. This difficulty was overcome by the introduction of cyclohexane-based charge transport molecules. The EL quantum efficiency of 0.06% was attained in the single-layer devices with two-component blends.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 425: Symposium I – Liquid Crystals for Advanced Technologies , 1996 , 233
Copyright
Copyright © Materials Research Society 1996

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References

1. Tang, C. W. and VanSlyke, S. A., Appl. Phys. Lett. 51, 913 (1987).Google Scholar
2. Tang, C. W., VanSlyke, S. A. and Chen, C. H., J. Appl.Phys., 65, 3610 (1989).Google Scholar
3. Adachi, C., Tokito, S., Tsutsui, T. and Saito, S., Jpn. J. Appl. Phys., 27, L296 (1988).Google Scholar
4. Adachi, C., Tsutsui, T. and Saito, S., Appl. Phys. Lett., 55, 1489 (1989).Google Scholar
5. Adachi, C., Tsutsui, T. and Saito, S., Appl. Phys. Lett., 56, 799 (1990).Google Scholar
6. Aminaka, E., Tsutsui, T. and Saito, S., Jpn. J. AppI.Phys., 33, 1061 (1994).Google Scholar
7. Burroughes, J. H., Bradley, D. D. C., Brown, A. R., Marks, R. N., Mackay, K., Friend, R. H., Burn, P. L. and Holmes, A. B., Nature, 347, 539 (1990).Google Scholar
8. Ohmori, Y., Uchida, M., Muro, K. and Yoshino, K., Jpn. J. Appl. Phys., 30, L1938 (1991).Google Scholar
9. Braun, D. and Heeger, A. J., Appl. Phys. Lett., 58, 1982 (1991).Google Scholar
10. Grem, G., Leditzky, G., Ullrich, B. and Leising, G., Adv. Mater., 4, 36 (1992).Google Scholar
11. Hosokawa, C., Kawasaki, N., Sakamoto, S. and Kusumoto, T., Appl. Phys. Lett., 61, 2503 (1992).Google Scholar
12. Yang, Z., Sokolik, I. and Karasz, F. E., Macromolecules., 26, 1188 (1993).Google Scholar
13. Kim, D. U., Aminaka, E., Tsutsui, T. and Saito, S., Jpn. J. Appl. Phys., 34, 6255 (1995).Google Scholar
14. Kido, J., Kohda, M., kuyama, K.O and Nagai, K., Appl. Phys. Lett., 61, 761 (1992).Google Scholar
15. Tsutsui, T., Lin, C. P. and Saito, S., Mol. Cryst. Liq. Cryst., 256, 63 (1994).Google Scholar
16. Lin, C. P., Tsutsui, T. and Saito, S., New Poly. Mater., 4, 277 (1995).Google Scholar
17. Lin, C. P., Tsutsui, T. and Saito, S., Nippon Kagaku Kaishi., 10, 649 (1995). (in Japanese)Google Scholar
18. Shi, H. and Chen, S. H., Liq. Crystals., 18, 733 (1994)Google Scholar
19. Shi, H. and Chen, S. H., Liq. Crystals., 19, 849 (1995)Google Scholar
20. Mastrangelo, J. C., Blanton, T. N. and Chen, S. H., Appl. Phys. Lett., 66, 2212 (1995).Google Scholar
21. See the review article by Tsutsui, T. and Saito, S., Intrinsically Conducting Polymers: An Emerging Technology, edited by Aldissi, M., p123 ( Kluwer Academic, The Netherlands, 1993).Google Scholar