Fabrication of Red, Green, and Blue Organic Light-Emitting Diodes Using m-MTDATA as a Common Hole-Injection Layer

Jeongmoon Kim; Minchul Song; Jiyoun Seol; Hyunmin Hwang; Chinho Park

Korean Journal of Chemical Engineering, Vol.22, No.4, 643-647, July, 2005

DOI10.1007/BF02706658 Export Citation

Fabrication of Red, Green, and Blue Organic Light-Emitting Diodes Using m-MTDATA as a Common Hole-Injection Layer

Jeongmoon Kim, Minchul Song, Jiyoun Seol, Hyunmin Hwang, and Chinho Park^†

School of Chemical Engineering and Technology, Yeungnam University, 214-1 Dae-dong, Gyeongsan 712-749, Korea

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Organic light-emitting diodes (OLEDs) of metal-semiconductor-metal (MSM) structure have been fabricated by using m-MTDATA [4,4',4''-tris (3-methylphenylphenylamino) triphenylamine] as a hole-injection layer (HIL). The m-MTDATA is shown to be an effective hole-injecting material for the OLED, in that the insertion of m-MTDATA greatly reduces the roughness of anode surface, lowers the turn-on voltage, and increases the luminous efficiency. Red, green and blue OLEDs were fabricated, and their color coordinates in CIE chromaticity were found to be (0.600, 0.389), (0.240, 0.525) and (0.171, 0.171), respectively. The luminous efficiencies of the fabricated OLEDs were 1.4 lm/W at 106 cd/m2 for red, 1.4 lm/W at 100 cd/m2 for green, and 2.0 lm/W at 104 cd/m2 for blue.

Keywords:Organic Light-emitting Diode (OLED);Hole-injection Layer (HIL);Metal-semiconductor-metal (MSM) Structure;Luminous Efficiency

[References]

Chen CH, Shi J, Coord. Chem. Rev., 171, 161 (1998)
Fujii H, Kanno H, Sano T, Nishio Y, Hamada Y, Takahashi H, Usuki T, Shibata K, IEICE Trans. Electron., E81-C(7), 1034 (1998)
Giebeler C, Antoniadis H, Bradley DDC, Shirota Y, Appl. Phys. Lett., 72(19), 2448 (1998)
Giebeler C, Antoniadis H, Bradley DDC, Shirota Y, J. Appl. Phys., 85(1), 608 (1999)
Kalinowski J, J. Phys. D-Appl. Phys., 32, R179 (1999)
Kim HS, Lee JH, Park C, J. Kor. Phys. Soc., 41(3), 395 (2002)
Kwon SH, Paik SY, Yoo JS, Synth. Met., 130, 55 (2002)
Lee SS, Cho SM, Korean J. Chem. Eng., 19(3), 463 (2002)
Moriwaki K, Kusumoto M, Akamatsu K, Nakano H, Shirota Y, J. Mater. Chem., 8, 2671 (1998)
Nakano H, Akamatsu K, Moriwaki K, Shirota Y, Chem. Lett., 701 (1996)
Park C, Lee J, Hwang H, Lee T, Kim H, “Blue Organic Light Emitting Diodes Based on 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline (Bathocuproine),” Proc. 7th Intern. Display Workshops, IDW ’00, 881 (2000)
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Tang CW, VanSlyke SA, Appl. Phys. Lett., 51(12), 913 (1987)
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Yamamori A, Adachi C, Koyama T, Taniguchi Y, Appl. Phys. Lett., 72(17), 2147 (1994)

[Referenced By]

[Related Articles]

[1] Chen CH, Shi J, Coord. Chem. Rev., 171, 161 (1998)

[2] Fujii H, Kanno H, Sano T, Nishio Y, Hamada Y, Takahashi H, Usuki T, Shibata K, IEICE Trans. Electron., E81-C(7), 1034 (1998)

[3] Giebeler C, Antoniadis H, Bradley DDC, Shirota Y, Appl. Phys. Lett., 72(19), 2448 (1998)

[4] Giebeler C, Antoniadis H, Bradley DDC, Shirota Y, J. Appl. Phys., 85(1), 608 (1999)

[5] Kalinowski J, J. Phys. D-Appl. Phys., 32, R179 (1999)

[6] Kim HS, Lee JH, Park C, J. Kor. Phys. Soc., 41(3), 395 (2002)

[7] Kwon SH, Paik SY, Yoo JS, Synth. Met., 130, 55 (2002)

[8] Lee SS, Cho SM, Korean J. Chem. Eng., 19(3), 463 (2002)

[9] Moriwaki K, Kusumoto M, Akamatsu K, Nakano H, Shirota Y, J. Mater. Chem., 8, 2671 (1998)

[10] Nakano H, Akamatsu K, Moriwaki K, Shirota Y, Chem. Lett., 701 (1996)

[11] Park C, Lee J, Hwang H, Lee T, Kim H, “Blue Organic Light Emitting Diodes Based on 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline (Bathocuproine),” Proc. 7th Intern. Display Workshops, IDW ’00, 881 (2000)

[12] Parker JD, J. Appl. Phys., 75(3), 1656 (1994)

[13] Shirota Y, Kuwabara Y, Inada H, Wakimoto T, Nakada H, Yonemoto Y, Kawami S, Imai K, Appl. Phys. Lett., 65(7), 807 (1994)

[14] Staudigel J, Stossel M, Steuber F, Simmerer J, Appl. Phys. Lett., 75(2), 217 (1999)

[15] Tang CW, VanSlyke SA, Appl. Phys. Lett., 51(12), 913 (1987)

[16] Winkler B, Meghdadi F, Tasch S, Synth. Met., 102, 1083 (1999)

[17] Yamamori A, Adachi C, Koyama T, Taniguchi Y, Appl. Phys. Lett., 72(17), 2147 (1994)