GDI 호스트-도펀트 형광체를 이용한 청색 OLED의 제작과 특성 평가

장지근; 신세진; 강의정; 김희원; 장호정; 오명환; 김영섭; 이준영; 공명선; 이영관; Ji-Geun Jang; Se-Jin Shin; Eui-Jung Kang; Hee-Won Kim; Ho-Jung Chang; Myung-Hwan Oh; Young-Seop Kim; Jun-Young Lee; Myoung-Seon Gong; Young-Kwan Lee

Korean Journal of Materials Research, Vol.16, No.4, 253-256, April, 2006

DOI10.3740/MRSK.2006.16.4.253 Export Citation

GDI 호스트-도펀트 형광체를 이용한 청색 OLED의 제작과 특성 평가

Fabrication and Characterization of Blue OLED using GDI Host-Dopant Phosphors

장지근^†, 신세진, 강의정, 김희원, 장호정, 오명환, 김영섭, 이준영, 공명선 ¹, 이영관 ²

단국대학교 전자공학과
¹단국대학교 화학과
²성균관대학교 화학공학과

Ji-Geun Jang^†, Se-Jin Shin, Eui-Jung Kang, Hee-Won Kim, Ho-Jung Chang, Myung-Hwan Oh, Young-Seop Kim, Jun-Young Lee, Myoung-Seon Gong¹, and Young-Kwan Lee²

Department of Electronics Engineering, Dankook University, Korea
¹Department of Chemistry, Dankook University, Korea
²Department of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi, 440-746, Korea

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The blue emitting OLEDs using GDI host-dopant phosphors have been fabricated and characterized. In the device fabrication, 2-TNATA [4,4',4'-tris(2-naphthylphenyl-phenylamino)- triphenylamine] as a hole injection material and NPB [N,N'-bis(1-naphthyl)-N,N'-diphenyl-1,1'-biphenyl-4,4'-diamine] as a hole transport material were deposited on the ITO(indium thin oxide)/glass substrate by vacuum evaporation. And then, blue color emission layer was deposited using GDI602 as a host material and GDI691 as a dopant. Finally, small molecule OLEDs with structure of ITO/2-TNATA/NPB/GDI602:GDI691/Alq3/LiF/Al were obtained by in-situ deposition of Alq3, LiF and Al as the electron transport material, electron injection material and cathode, respectively. Blue OLEDs fabricated in our experiments showed the color coordinate of CIE(0.14, 0.16) and the maximum power efficiency of 1.1 lm/W at 11 V with the peak emission wavelength of 464 nm.

Keywords:Blue OLED;Luminance;CIE coordinate;Power efficiency;Peak emission wavelength

[References]

Shin DC, Information Display, 5(4), 13 (2005)
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Choi YS, Ryu HS, The Magazine of the lEEK, 26(2), 28 (1999)
Kang JW, Kim YS, Oh MH, Lim SG, Jang JG, Jang J, Chang HJ, Heo GM, Information Display Engineering, 155 (2005)

[Referenced By]

[Related Articles]

[1] Shin DC, Information Display, 5(4), 13 (2005)

[2] Kido J, EL O, Chungmunkag, 34 (2004)

[3] Tang CW, Van Slyke SA, Appl. Phys. Lett., 51, 913 (1987)

[4] Burroughs JH, Bradley DDC, Brown AR, Marks RN, Mackay K, Friend RH, Burn PL, Holmes AB, Nature, 347, 539 (1990)

[5] Baldo MA, Lamansky S, Burro-ws PE, Thompson ME, Forrest SR, Appl. Phys. Lett., 75, 4 (1999)

[6] Gong SC, Back IJ, Yoo JH, Lim HS, Chang HJ, Chang GK, J. of the Microelectronics & Packaging Society, 12(2), 155 (2005)

[7] Nguyen TP, Destruel P, Handbook of Luminescence, Display Materials, and Devices, Vol. 1-Organic Light Emitting Diodes, 90 (2003) (2003)

[8] Hatwar TK, Spindler JP, Ricks ML, Young RH, Cosimbescu L, Begley WJ, Van Slyke SA, Asia Display / IMID '04 Digest, 816 (2004)

[9] Kanno H, Hamada Y, Takahashi H, IEEE J. of Selected Topics in Quantum Electronics, 10(1), 30 (2004)

[10] Kim WY, Vacuum Research Association, 2, 27 (2001)

[11] Choi YS, Ryu HS, The Magazine of the lEEK, 26(2), 28 (1999)

[12] Kang JW, Kim YS, Oh MH, Lim SG, Jang JG, Jang J, Chang HJ, Heo GM, Information Display Engineering, 155 (2005)