White Organic Light-Emitting Diodes Using Bis(2,4-dimethyl-8-quinolinolato)(triphenylsilanolato) Aluminum(III) as a New Hole-Blocking Layer
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概要
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The balanced white-emission of the organic light-emitting diodes (OLEDs), consisted of a deep blue N,N$'$-diphenyl-N,N$'$-bis(1-naphthyl)-(1,1$'$-biphenyl)-4,4$'$-diamine (NPB) emitter and a new orange emitter made of the bis(2,4-dimethyl-8-quinolinolato)(triphenylsilanolato) aluminum(III) (24MeSAlq) doped with a red fluorescent 4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) was tuned by varying a thickness of a DCJTB-doped 24MeSAlq material. For the white OLED with 10-nm-thick DCJTB (0.5%) doped 24MeSAlq, the maximum luminance of about 29,700 Cd/m2 is obtained at 15 V. Also, Commission Internationale d’Eclairage (CIE) chromaticity coordinates of $(0.32,0.28)$ at about 100 Cd/m2, which is very close to white light equi-energy point $(0.33,0.33)$, could be obtained.
- 2006-03-15
著者
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Lee J.
Dept. Obst & Gynec. Yamagata Univ. Sch. Med.
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Lim J.
Dept. of Materials Science and Engineering, SungKyunKwan University, Suwon, Kyung-Gi-Do, 440-746, Korea
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Yeom G.
Dept. of Materials Science and Engineering, SungKyunKwan University, Suwon, Kyung-Gi-Do, 440-746, Korea
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Jeong C.
Dept. of Materials Science and Engineering, SungKyunKwan University, Suwon, Kyung-Gi-Do, 440-746, Korea
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