Synthesis and characterization of ortho-twisted asymmetric anthracene derivatives for blue organic light emitting diodes (OLEDs)
作者:Min-Gi Shin、Seul Ong Kim、Hyun Tae Park、Sung Jin Park、Han Sung Yu、Yun-Hi Kim、Soon-Ki Kwon
DOI:10.1016/j.dyepig.2011.03.002
日期:2012.3
New ortho-twisted asymmetric anthracene derivatives have been synthesized and characterized. The anthracene derivatives show good thermal stability with high glass transition temperatures and a pure blue emission with a narrow full width at half maximum in a film state (λmax = 454 nm with 71 nm for 2-(2-methylnaphtathalene-1-yl)-9,10-di(naphthalene-2-yl)anthracene and λmax = 445 nm with 60 nm for 2-(biphenyl-2-yl)-9
已经合成并表征了新的邻位不对称蒽衍生物。的蒽衍生物显示出与高玻璃化转变温度和在薄膜状态的半峰窄全宽纯蓝色发射良好的热稳定性(λ最大 = 454纳米与2-(2- methylnaphtathalene -1-基71纳米) -9,10-二(萘-2-基)蒽和λ最大 = 445与2-(联苯-2-基)60nm的纳米-9,10-二(萘-2-基)蒽)。使用2-(2-甲基萘萘-1-基)-9,10-二萘-2-基蒽作为发光材料的多层器件的最大量子效率为3.61%(功率效率为2.15 lm / W,当前效率为3.55 cd / A)和蓝色国际照明委员会色度坐标(x = 0.15,y = 0.13)。使用2-(联苯-2-基)-9,10-二(萘-2-基)蒽作为发光材料的装配好的器件显示出的最大量子效率为3.7%(功率效率为2.11 lm / W,电流效率3.55 cd / A)和蓝色国际照明委员会色度坐标(x =