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학술지 New Limb-Structured Blue Light-Emitting Material Comprising an Anthracene Core with Bulky Substituents at its 2, 3, 9, and 10-Positions
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저자
Ran Kim, Xianqing Liu, Sang-Gyeong Lee, 이종희, 김윤희
발행일
201411
출처
Synthetic Metals, v.197, pp.68-74
ISSN
0379-6779
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.synthmet.2014.08.006
협약과제
14PB2200, AMOLED TV용 soluble TFT 및 화소 형성 소재/공정 기술 개발, 이종희
초록
We designed and developed a new limb-structured anthracene derivative, 2,3-bis(9,9-diethyl-9H-fluoren-2-yl)-9,10-diphenylanthracene (EFPA), comprising an anthracene core with phenyl units at its the 9 and 10-positions and fluorene units at its 2 and 3-positions. This blue-emitting material was synthesized via the Suzuki cross-coupling reaction and its structure was confirmed by using FT-IR, 1H NMR, 13C NMR, and mass spectroscopy. The optical, electrochemical and thermal properties of the material were investigated, and its the molecular structure-property relationships were evaluated. The non-doped devices using EFPA displayed a maximum external quantum efficiency (EQE) of 2.55% with CIE color coordinates (0.166, 0.197). Doped device using 5% EFPA as the dopant showed a maximum external quantum efficiency of 2.90% and CIE coordinates of (0.142, 0.107).
키워드
Anthracene, Blue light-emitting material, OLED
KSP 제안 키워드
10-Diphenylanthracene, 1H NMR, Anthracene derivative, Blue light-emitting, Bulky substituents, CIE coordinates, External Quantum Efficiency, Fourier Transform Infrared Spectroscopy(FTIR), Light-emitting materials, Molecular structure, Non-doped