Self-assembled monolayer modified MoO₃/Au/MoO₃ multilayer anodes for high performance OLEDs

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• 作者：Daekyun Jeong ; Chefwi Lim ; Myeonggi Kim ; Kyunghoon Jeong…
• 关键词：MoO3/Au/MoO3 ; organic light emitting diode (OLED) ; Self Assembled Monolayer (SAM) ; 1H ; 1H ; 2H ; 2H ; perfluorodecyltrichlorosilane (PFS) ; 3 ; aminopropyltrimethoxysilane (APS)
• 刊名：Electronic Materials Letters
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：13
• 期：1
• 页码：16-24
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Condensed Matter Physics; Nanotechnology and Microengineering; Characterization and Evaluation of Materials; Nanotechnology;
• 出版者：The Korean Institute of Metals and Materials
• ISSN：2093-6788
• 卷排序：13

文摘

We control the work function and the surface energy of the MoO₃/Au/MoO₃ (MAM) anode of OLEDs by modifying the top MoO₃ layer via vapor phase deposition. The performance and stability of the device are significantly altered depending on the dipole direction of the selfassembled monolayer (SAM) with permanent dipole moment inserted between N,N′-Bis(naphthalen-1-yl)-N,N′-bis(phenyl)benzidine (NPB) film and a MAM anode as well as on the interfacial wetting between the SAM and NPB layer. A CF₃-terminated monolayer on a MAM electrode improved the performance and stability of the OLEDs relative to a reference device with only a MAM electrode, demonstrating that coating with SAMs via vapor phase deposition is an effective method to engineer the interface of MAM electrode optoelectronic devices.