کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
175438 | 458910 | 2016 | 8 صفحه PDF | دانلود رایگان |
• Directly linked carbazole-pyridoindole core structure for host material
• High triplet energy host materials with thermal stability
• Benzonitrile and phenyl modification to manage charge transport properties
Directly-coupled carbazole-pyridoindole moieties containing host materials for green and blue phosphorescent organic light-emitting diodes were synthesized by linking the two moieties via two different positions on the carbazole-pyridoindole core structure. The carbazole-pyridoindole moieties were functionalized using benzonitrile and phenyl substituent groups to introduce controlled-charge transport properties. The host materials synthesized using the carbazole-pyridoindole moieties showed a maximum quantum efficiency of 19.1% in green phosphorescent devices, and 18.2% in blue phosphorescent devices.
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Journal: Dyes and Pigments - Volume 130, July 2016, Pages 183–190