Multifunctional Diarylamine-Substituted Benzo[k]fluoranthene Derivatives as Green Electroluminescent Emitters and Nonlinear Optical Materials

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• 作者：Zhen-Yuan Xia ; Jian-Hua Su ; Hai-Hua Fan ; Kok-Wai Cheah ; He Tian ; Chin H. Chen
• 刊名：Journal of Physical Chemistry C
• 出版年：2010
• 出版时间：July 8, 2010
• 年：2010
• 卷：114
• 期：26
• 页码：11602-11606
• 全文大小：259K
• 年卷期：v.114,no.26(July 8, 2010)
• ISSN：1932-7455

文摘

A new series of benzo[k]fluoranthene derivatives incorporating a diarylamine group have been synthesized and characterized. These compounds show high thermal stability with glass transition temperatures in the range of 162−205 °C. Two-layer electroluminescent devices employing them as the hole-transporting layer and light-emitting layer achieved efficient green emission under low driving voltage. A further optimized three-layer device based on one of these compounds, 3-(1-naphthylphenylamino)-7,12-diphenylbenzo[k]fluoranthene (PNDPBF), exhibited a maximum current efficiency of 10.2 cd/A (6.7 lm/W at 4.70 V). Nonlinear optical properties of these molecules were also investigated by measuring their two-photon excited fluorescence.