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Efficient Blue Light Emitting Diode by Using Anthracene Derivative with 3,5-Diphenylphenyl Wings at 9- and 10-Position

机译:通过在9位和10位使用带有3,5-二苯苯基翼的蒽衍生物的高效蓝光发光二极管

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摘要

The novel blue light emitting material,9,10-bis(3',5'-diphenylphenyl)anthracene (BDA) was synthesized by Suzuki coupling reaction and characterized by the measurements of 1H NMR,13C NMR and FT-IR.The new anthracene derivative,which contains anthracene as a main core unit and 3',5'-diphenylphenyl group derivative as wings,has high fluorescence yield,good thermal stability,and high glass transition temperature at 188 °C.With the newly non-doped blue emitting material in the multilayer device structure,it was possible to achieve the current efficiency of 3.0 cd/A.The EL spectrum of the ITO/CuPc/alpha-NPD/BD A/Alq3/LiF/Al device showed a maximum wavelength (lambda_(max)) at 440 nm.The emitting color of device showed the blue emission (x,y)=(0.18,0.19) at 10 mA/cm2 in CIE (Commission Internationale de l'Eclairage) chromaticity coordinates.
机译:通过铃木偶合反应合成了新型的蓝色发光材料9,10-双(3',5'-二苯基苯基)蒽(BDA),并通过1H NMR,13C NMR和FT-IR进行了表征。该衍生物以蒽为主要核心单元,以3',5'-二苯基苯基衍生物为翅膀,具有较高的荧光收率,良好的热稳定性和188°C的高玻璃化转变温度。 ITO / CuPc / alpha-NPD / BD A / Alq3 / LiF / Al器件的EL光谱显示出最大波长(λ_(在440 nm处,器件的发射颜色在CIE(Commission Internationale de l'Eclairage)色度坐标中在10 mA / cm2时显示蓝色发射(x,y)=(0.18,0.19)。

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