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Progress in Electroluminescent Devices Using Molecular Thin Films

Published online by Cambridge University Press:  29 November 2013

Tetsuo Tsutsui
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Extract

Organic electroluminescence (EL) is moving from a simple curiosity in laboratories to the reality of commercial use. The day will soon arrive when high-quality green EL displays find practical usage. Charge-injection-type EL involves the combination of positive and negative charge carriers injected from electrodes in contact with an organic thin film. The occurrence of EL through bipolar charge injection into organic solids was clarified for single crystals of anthracene and related compounds in the 1960s. Few new developments in physics exist today for organic EL. However worldwide enthusiasm for charge-injection-type EL, which started in the mid-1980s, has been increasing rapidly. The motivation for this renewed interest is straightforward. High-efficiency surface emission across the whole visible spectral range can be obtained easily, and prospects now exist for full-color flat-panel-display technology.

Since the demonstration of high-performance EL devices made of multilayers of vacuum-sublimed dye films by Tang and VanSlyke, much progress has occurred in the research and development of EL devices made from molecular materials. A variety of molecular materials such as vacuum-sublimed dye films, fully π-conjugated polymers, polymers with chromophores orr skeletal chains, or side chains, and polymer-dispersed dye films can be used for EL devices.

Among a variety of EL devices, multilayer-structure versions made of vacuum-sublimed dye films exhibit the best performance. Application-oriented research in the development of high-quality flat-panel displays has been performed during the past 10 years, mainly in Japan's private-sector laboratories.

Type
Polymeric and Organic Electronic Materials and Applications
Information
MRS Bulletin , Volume 22 , Issue 6 , June 1997 , pp. 39 - 45
Copyright
Copyright © Materials Research Society 1997

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References

1.Pope, M., Kallmann, H.P., and Magnante, P., J. Chem. Phys. 38 (1962) p. 2042.CrossRefGoogle Scholar
2.Helfrich, W. and Schneider, W.G., Phys. Rev. Lett. 14 (1965) p. 229.CrossRefGoogle Scholar
3.Tang, C.W. and VanSlyke, S.A., Appl. Phys. Lett. 51 (1987) p. 913.CrossRefGoogle Scholar
4.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 (1990) p. 539.CrossRefGoogle Scholar
5.Braun, D. and Heeger, A.J., Appl. Phys. Lett. 58 (1991) p. 1982.CrossRefGoogle Scholar
6.Adachi, C., Tsutsui, T., and Saito, S., Optoelectron. Devices Technol. 6 (1991) p. 25.Google Scholar
7.Tsutsui, T. and Saito, S., in Intrinsically Conducting Polymer: An Emerging Technology, edited by Aldissi, M. (Kluwer Academic Publishers, Netherlands, 1993) p. 123.CrossRefGoogle Scholar
8.Tsutsui, T., Aminaka, E., Fujita, Y., Hamada, Y., and Saito, S., Synth. Met. 55–57 (1993) p. 4157.CrossRefGoogle Scholar
9.Tsutsui, T., Lin, C.P., and Saito, S., Mol. Cryst. Liq. Cryst. 256 (1994) p. 63.CrossRefGoogle Scholar
10.Lin, C.P., Tsutsui, T., and Saito, S., New Polym. Mater. 4 (1995) p. 277.Google Scholar
11.Kim, D.U., Tsutsui, T., and Saito, S., Chem. Lett. (1995) p. 587.Google Scholar
12.Kim, D.U., Tsutsui, T., and Saito, S., Polym. 36 (1995) p. 2481.CrossRefGoogle Scholar
13.Pope, M. and Swenberg, C.E., Electronic Processes in Organic Crystals (Oxford University Press, New York, 1982).Google Scholar
14.Tokito, S., Tsutsui, T., Saito, S., and Tanaka, R., Polym. Commun. 27 (1986) p. 333.Google Scholar
15.Tsutsui, T., Aminaka, E., Hamada, Y., Adachi, C., and Saito, S., Proc. SPIE 1910 (1993) p. 180.Google Scholar
16.Tsutsui, T., Aminaka, E., and Saito, S., J. Appl. Phys. 79 (1996) p. 8808.Google Scholar
17.Helfrich, W. and Schneider, W.G., J. Chem. Phys. 44 (1966) p. 2902.CrossRefGoogle Scholar
18.Adachi, C., Tokito, S., Tsutsui, T., and Saito, S., Jpn. J. Appl. Phys. 27 (1988) p. L269.CrossRefGoogle Scholar
19.Shirota, Y., Kuwabara, Y., Inada, H., Wakimoto, T., Nakada, H., Yonemoto, Y., Kawai, S., and Imai, K., Appl. Phys. Lett. 65 (1994) p. 807.CrossRefGoogle Scholar
20.Adachi, C., Nagai, K., and Tamoto, N., Appl. Phys. Lett. 66 (1994) p. 2679.CrossRefGoogle Scholar
21.Vanslyke, S.A., Chen, C.H., and Tang, C.W., Appl. Phys. Lett. 69 (1996) p. 2160.CrossRefGoogle Scholar
22.Tanaka, H., Tokito, S., Taga, Y., and Okada, A., Chem. Commun. (1996) p. 2175.Google Scholar
23.Tokito, S., Tanaka, H., Okada, A., and Taga, Y., Appl. Phys. Lett. 69 (1996) p. 878.CrossRefGoogle Scholar
24.Abkowtz, M. and Pai, D.M., Philos. Mag. B53 (1986) p. 193.CrossRefGoogle Scholar
25.Adachi, C., Tsutsui, T., and Saito, S., Appl. Phys. Lett. 55 (1989) p. 1489.CrossRefGoogle Scholar
26.Adachi, C., Tsutsui, T., and Saito, S., Appl. Phys. Lett. 56 (1990) p. 799.CrossRefGoogle Scholar
27.Hamada, Y., Adachi, C., Tsutsui, T., and Saito, S., Jpn. J. Appl. Phys. 31 (1992) p. 1812.CrossRefGoogle Scholar
28.Hamada, Y., Adachi, C., Tsutsui, T., and Saito, S., Optoelectron. Devices Technol. 7 (1992) p. 83.Google Scholar
29.Buchwald, E., Meier, M., Karg, S., Riess, W., Schwoerer, M., Posch, P., Schmidt, H-W., and Strohriegl, P., Adv. Mater. 7 (1995) p. 839.Google Scholar
30.Strukelji, M., Papadimitrakopoulos, F., Miller, T., and Rothberg, L., Science 267 (1995) p. 1969.CrossRefGoogle Scholar
31.Kido, J., Harada, G., and Nagai, K., Chem. Lett. (1996) p. 161.Google Scholar
32.Yang, Y. and Pei, Q., J. Appl. Phys. 77 (1995) p. 4807.CrossRefGoogle Scholar
33.Kido, J., Ohtaki, C., Hongawa, K., Okuyama, K., and Nagai, K., Jpn. J. Appl. Phys. 7A (1993) p. L917.CrossRefGoogle Scholar
34.Kido, J., Ohtaki, C., Hongawa, K., Okuyama, K., and Nagai, K., Appl. Phys. Lett. 63 (1993) p. 2627.CrossRefGoogle Scholar
35.Kido, J., Kimura, M., and Nagai, K., Science 267 (1995) p. 1332.CrossRefGoogle Scholar
36.Tokuhisa, H., Era, M., Tsutsui, T., and Saito, S., Appl. Phys. Lett. 66 (1995) p. 3433.CrossRefGoogle Scholar
37.Aminaka, E. and Tsutsui, T., in Electrical, Optical, and Magnetic Properties of Organic Solid State Materials III, edited by Dalton, L.R., Jen, A.K-Y., Wnek, G.E., Rubner, M.F., Lee, C.Y-C., and Chiang, L.Y. (Mater. Res. Soc. Symp. Proc. 413, Pittsburgh, 1996) p. 91.Google Scholar
38.Hamada, Y., Sano, T., Fujta, M., Fujii, T., Nishio, Y., and Shibata, K., Chem. Lett. (1993) p. 905.Google Scholar
39.Nakamura, N., Wakabayashi, S., Miyairi, K., and Fujii, T., Chem. Lett. (1994) p. 1741.Google Scholar
40.Hamada, Y., Sano, T., Fujta, M., Fujii, T., Nishio, Y., and Shibata, K., presented at the 56th Fall Meeting, Japan Society of Applied Physics, 1995.Google Scholar
41.Hosokawa, C., Tokailin, H., Higashi, H., and Kusumoto, T., Acta Polytec. Scand. Appl. Phys. Ser. 170 (1990) p. 219.Google Scholar
42.Tokailin, H., Higashi, H., Hosokawa, C., and Kusumoto, T., Proc. SPIE 1910 (1993) p. 38.Google Scholar
43.Hosokawa, C., Higashi, H., Nakamura, H., and Kusumoto, T., Appl. Phys. Lett. 67 (1995) p. 3853.CrossRefGoogle Scholar
44.Tang, C.W., VanSlyke, S.A., and Chen, C.H., J. Appl. Phys. 65 (1989) p. 3610.CrossRefGoogle Scholar
45.Wakimoto, T., Murayama, R., Nagayama, K., Okuda, Y., Nakada, H., and Tohma, T., SID 96 Digest (1996) p. 849.Google Scholar
46.Hamada, Y., Sano, T., Shibata, K., and Kuroki, K., Jpn. J. Appl. Phys. 34 (1995) p. L824.CrossRefGoogle Scholar
47.Sato, Y., Ichinosawa, S., and Kanai, H., in Inorganic and Organic Electroluminescence, edited by Mauch, R.H. and Gumlich, H-E. (Wissenschaft & Technik Verlag, Berlin, 1996) p. 255.Google Scholar
48.VanSlyke, S.A., Bryan, P.S., and Tang, C.W., Inorganic and Organic Electroluminescence p. 195.Google Scholar
49.Lin, C.P., Tsutsui, T., and Saito, S., J. Chem. Soc. Jpn., Chem. Ind. Chem. (1995) p. 649 (in Japanese).Google Scholar
50.Kim, D.U., Aminaka, E., Tsutsui, T., and Saito, S., Jpn. J. Appl. Phys. 34 (1995) p. 6255.CrossRefGoogle Scholar
51.Kim, D.U. and Tsutsui, T., J. Appl. Phys. 80 (1996) p. 4785.CrossRefGoogle Scholar
52.Era, M., Adachi, C., Tsutsui, T., and Saito, S., Chem. Phys. Lett. 178 (1991) p. 488.CrossRefGoogle Scholar
53.Tsutsui, T., Takada, N., Saito, S., and Ogino, E., Appl. Phys. Lett. 65 (1994) p. 1868.CrossRefGoogle Scholar
54.Era, M., Tsutsui, T., and Saito, S., Appl. Phys. Lett. 67 (1995) p. 2436.CrossRefGoogle Scholar
55.Era, M., Morimoto, S., Tsutsui, T., and Saito, S., Appl. Phys. Lett. 65 (1994) p. 676.CrossRefGoogle Scholar