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Electroluminescent Properties of Anthracene Chromophore with Naphthylethenyl Substituents
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  • Electroluminescent Properties of Anthracene Chromophore with Naphthylethenyl Substituents
  • Electroluminescent Properties of Anthracene Chromophore with Naphthylethenyl Substituents
저자명
Kim. Hong-Soo,Jeong. Noh-Hee
간행물명
한국유화학회지
권/호정보
2004년|21권 1호|pp.24-30 (7 pages)
발행정보
한국유화학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

New electroluminescent materials based on anthracene chromophore with naphthylethenyl substituent, 9,10-bis($alpha$-naphthylethenyl)anthracene (a-BNA), as well as four kinds of its derivatives were synthesized, and luminescent properties of these materials were investigated. Electrolumineecent(EL) emission band was discussed based on their substituent structure differences. It was found that the emission band strongly depends on the molecular structure of introduced substituent. It can be tuned from 557 nm to 591 nm by changing the substituent structures. On the other hand, the anthracene chromophore with bulky substituent possessed high melting point and they gave stable films through vacuum-sublimation. The double layer EL device of ITO/TPD/emission layer/Mg:Ag was employed, and exhibited efficient orange light originating from emitting materials. EL emission with a maximum luminance was observed in the b-BNA emitting material, : maximum luminance was about 8,060 cd $m^{-2}$ at an applied voltage of 10 V and current density of 680 $mA/cm^2$. In conclusion, the electroluminescent properties also showed good difference with their substituent structure.