Electroluminescent Properties of Anthracene-Based Dyes with α-and β-Naphthylethenyl substituent

Hong Soo Kim; Tetsuo Tsutsui

Journal of Industrial and Engineering Chemistry, Vol.4, No.4, 324-328, December, 1998

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Electroluminescent Properties of Anthracene-Based Dyes with α-and β-Naphthylethenyl substituent

Hong Soo Kim^†, and Tetsuo Tsutsui¹

Department of Chemical Engineering, Chungcheong College, Chungbuk 363-792, Korea
¹Department of Materials Science and Technology, Graduate School of Engineering Science, Kyushu University, Kasuga-shi, Fukuoka 816, Japan

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New electroluminescent materials based on anthracene chromophore, 9,10-bis( α-naphthylethenyl)anthracene (α-BNA) and 9,10-bis(β-naphthylethenyl)anthracene (β -BNA) were newly synthesized. The anthracene derivatives with bulky substituent possessed high melting point and they gave stable amorphous films through vacuum-sublimation. Two types of electroluminescent devices were fabricated with double layer and triple layer structures : ITO/TPD/emission layer/MgAg, and ITO/TPD/emission layer/OXD-7/MgAg, respectively. In the triple layer devices with the emissive layer of α-BNA and β-BNA, efficient orange electroluminescencc was observed in both types of device : maximum luminance was about 9900 cd m^-2, 10000 cd m^-2 at an applied voltage of 10 V and maximum external quantum efficiency in the double layer devices was 0.9%, 1.4%, respectively.

Keywords:Electroluminescent Properties;Anthracene Derivatives;Amorphous Films;Thermal Stability

[References]

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Kido J, Iizumi Y, Chem. Lett., 10, 963 (1997)
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Braun D, Heeger AJ, Appl. Phys. Lett., 58, 1982 (1991)
Yang Y, Pei Q, Heeger AJ, J. Appl. Phys., 79, 934 (1996)
Kim DU, Tsutsui T, Saito S, Polymer, 36(12), 2481 (1995)
Kim DU, Tsutsui T, J. Appl. Phys., 80, 4785 (1996)
Tao XT, Zhang YD, Wada T, Sasabe H, Appl. Phys. Lett., 71, 1921 (1997)
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Kido J, Hongawa K, Okuyama K, Nagai K, Appl. Phys. Lett., 63, 2627 (1993)
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Aminaka E, Tsutsui T, Mater. Res. Soc. Symp. Proc., 413, 91 (1996)
Zou D, Yahiro M, Tsutsui T, Synth. Met., 91, 17 (1997)

[1] Tang CW, VanSlyke SA, Appl. Phys. Lett., 51, 913 (1987)

[2] Adachi C, Tokito S, Tsutsui T, Saito S, Jpn. J. Appl. Phys., 27, L269 (1988)

[3] Adachi C, Tsutsui T, Saito S, Appl. Phys. Lett., 56, 799 (1990)

[4] Higuchi A, Inada H, Kobada T, Shirota Y, Adv. Mater., 3, 549 (1991)

[5] Aminaka E, Tsutsui T, Saito S, J. Appl. Phys., 79, 8808 (1996)

[6] Tang CW, Vanslyke SA, Chen CH, J. Appl. Phys., 65, 3610 (1989)

[7] Kido J, Iizumi Y, Chem. Lett., 10, 963 (1997)

[8] Tokito S, Taga Y, Tsutsui T, Synth. Met., 91, 49 (1997)

[9] Braun D, Heeger AJ, Appl. Phys. Lett., 58, 1982 (1991)

[10] Yang Y, Pei Q, Heeger AJ, J. Appl. Phys., 79, 934 (1996)

[11] Kim DU, Tsutsui T, Saito S, Polymer, 36(12), 2481 (1995)

[12] Kim DU, Tsutsui T, J. Appl. Phys., 80, 4785 (1996)

[13] Tao XT, Zhang YD, Wada T, Sasabe H, Appl. Phys. Lett., 71, 1921 (1997)

[14] Kunugi Y, Tabakovic I, Canavesi A, Miller LL, Synth. Met., 89, 227 (1997)

[15] Kido J, Kimura M, Nagai K, Science, 267(5202), 1332 (1995)

[16] Kido J, Hongawa K, Okuyama K, Nagai K, Appl. Phys. Lett., 63, 2627 (1993)

[17] Kido J, Shionoya H, Nagai K, Appl. Phys. Lett., 67, 2281 (1995)

[18] Aminaka E, Tsutsui T, Saito S, Jpn. J. Appl. Phys., 33, 1061 (1994)

[19] Aminaka E, Tsutsui T, Saito S, Synth. Met., 71, 2009 (1995)

[20] Aminaka E, Tsutsui T, Mater. Res. Soc. Symp. Proc., 413, 91 (1996)

[21] Zou D, Yahiro M, Tsutsui T, Synth. Met., 91, 17 (1997)