Novel quinoxaline derivatives containing arylaminated aceanthrylene for organic red-light emitting diodes

作者：Jang Jae Wan; Park Hyuntae; Shin Min Ki; Kang Hyeon Hui; Oh Dae Hwan; Jung Sung Ouk; Kwon Soon Ki^*; Kim Yun Hi

来源：Dyes and Pigments, 2011, 88(1): 44-49.

DOI：10.1016/j.dyepig.2010.04.013

• Quinoxaline derivatives
• Arylaminated aceanthrylene
• Organic light emitting diodes
• Red emission
• Thermal stability
• Efficiency

Novel quinoxaline derivatives containing arylaminated aceanthrylene, N,N-diphenylaceanthryleno[2,1-b] quinoxalin-5-amine and N-(naphthalen-2-yl)-N-phenylaceanthryleno[2,1-b]quinoxahn-5-amine, were synthesized as red light emitting materials for use in organic light emitting diodes. The synthesized materials showed good thermal stability with glass transition temperatures of 142 degrees C for N,N-diphenylaceanthryleno[2,1-b]quinoxalin-5-amine and 163 degrees C for N-(naphthalen-2-yl)-N-phenylaceanthryleno [2,1-b]quinoxalin-5-amine. The dipolar characteristic of the quinoxaline derivatives resulted in prominent solvatochromic effects. The fabricated devices based on N,N-diphenylaceanthryleno[2,1-b]quinoxalin-5-amine showed maximum brightness of 17 523 cd/m(2) and current efficiency of 4 55 cd/A with chromaticity coordinates of 056 and 043. Devices based on N-(naphthalen-2-yl)-N-phenylaceanthryleno[2,1-b]quinoxalin-5-amine containing N-naphthyl-N-phenyl amine displayed red emission (x, y = 060, 0.39) with maximum brightness of 4239 cd/m(2) and current efficiency of 2.76 cd/A.

• 出版日期2011-1