Self-assembled monolayer modified MoO3/Au/MoO3 multilayer anodes for high performance OLEDs
| Autor: | Kyeong-Sik Min, Jiyoung Kim, Jae Hun Kim, Myeonggi Kim, Daekyun Jeong, Kyunghoon Jeong, Jin-Goo Park, Chefwi Lim, Jaegab Lee |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science business.industry Nanotechnology Self-assembled monolayer 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surface energy Electronic Optical and Magnetic Materials Anode 0103 physical sciences Monolayer Electrode OLED Optoelectronics Work function 0210 nano-technology business Layer (electronics) |
| Zdroj: | Electronic Materials Letters. 13:16-24 |
| ISSN: | 2093-6788 1738-8090 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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