한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Electroluminesent Properties of Phenothiazyl Derivatives Having Aromatic Moieties

  • Kim, Soo-Kang (Department of Chemistry/ Display Research Center, The Catholic University of Korea) ;
  • Kang, In-Nam (Department of Chemistry/ Display Research Center, The Catholic University of Korea) ;
  • Park, Jong-Wook (Department of Chemistry/ Display Research Center, The Catholic University of Korea) ;
  • Kim, Kyoung-Soo (OLED Team/ Electro-Materials BG, Doosan Corporation) ;
  • Choi, Cheol-Kyu (OLED Team/ Electro-Materials BG, Doosan Corporation) ;
  • Lee, Sang-Do (OLED Team/ Electro-Materials BG, Doosan Corporation) ;
  • Kim, Sang-Wook (OLED Team/ Electro-Materials BG, Doosan Corporation)
  • Published : 2006.08.22
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Abstract

We report the synthesis and electroluminescent properties of new aromatic compounds as hole-transporting materials based on phenothiazine, such as 1,4-diphenothiazyl-benzene [DPtzB], 1,4-diphenothiazyl-xylene [DPtzX] and 9,10-diphenothiazyl-anthracene [DPtzA]. DPtzB thin film exhibited photoluminescence (PL) maximum emission peak and emission shoulder at 450 and 475nm, and maximum emission at 447nm without emission shoulder was found in DPtzX thin film. When DPtzA was excited by incident light of 359nm, DPtzA showed strong PL emission at 417nm and weak emission at 600nm. Luminance efficiency of DPtzB, DPtzX and DPtzA-based electroluminescence (EL) devices was 3.57, 3.46 and 0.47cd/A, and power efficiency of DPtzB, DPtzX and DPtzA-based EL devices was 1.48, 1.26 and 0.20lm/W.

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