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유기발광다이오드용 고효율의 아미노쿠마린 유도체에 기반한 새로운 양극성 녹색 발광 물질

A green luminescent material synthesized based on aminocoumarin derivatives for organic light-emitting diodes

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/348720
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한국막학회 (The Membrane Society Of Korea)
초록

7-(4-([1,1-biphenyl]-4-yl(9,9-dimethyl-9H-fluoren-2-yl)amino)phenyl)-4-methyl-2H-chromen-2-one (BPFA-C) including coumarin moiety was synthesized through Suzuki aryl-aryl coupling reaction. Optical and electrical properties were examined by UV-visible absorption spectra, PL spectra, and AC-2. UV-visible spectrum of BPFA-C in a film state showed maximum absorption wavelength of 367 nm. PL spectrum of BPFA-C show maximum emission wavelength of 511 nm. BPFA-C showed highly efficient luminescence property. EL spectrum of BPFA-C exhibited a maximum value of 504 nm and BPFA-C device provided luminescence efficiency of 4.59 cd/A, power efficiency of 3.17 lm/W, and CIE (x,y) of (0.25, 0.53) at a current density of 10 mA/cm².

저자
  • 심연희(경희대학교 국제캠퍼스) | Yeonhee Sim
  • 박종욱(경희대학교 국제캠퍼스) | Jongwook Park