Fabrication of NPB/Alq3small-molecule multilayer structures with suppressed interface mixing by multi-jet mode electrospray deposition
| Autor: | Akihiko Kikuchi, Ryo Terada, Hiroyuki Ueda, Yoshiki Niinuma, Yusuke Takatsuka |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Electrospray Jet (fluid) Materials science Fabrication Photoluminescence business.industry Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Spectral line Electronic Optical and Magnetic Materials 0103 physical sciences OLED Optoelectronics Deposition (phase transition) 0210 nano-technology business Layer (electronics) |
| Zdroj: | physica status solidi (b). 254:1600564 |
| ISSN: | 0370-1972 |
| DOI: | 10.1002/pssb.201600564 |
| Popis: | In this study, we investigated the multi-jet mode modified electrospray deposition (ESD) production of NPB/Alq3 small-molecule multilayer structures with suppressed interface mixing, using common solvents. Observations of the initial deposition stage and analysis of the photoluminescence spectra of the multilayer structure were conducted. It was demonstrated that, by optimizing the deposition conditions, surface erosion of the NPB layer and the initiation of interface mixing between the NPB and Alq3 layers could be suppressed. A 55-nm NPB/60-nm Alq3 multilayer structure with suppressed intermixing and smooth surface morphology (RMS roughness of 3.9 nm) was obtained at the lowest levels of under-layer erosion. Schematic of a modified electrospray (nanomist deposition: NMD) system and an NPB/Alq3 multilayer structure deposited by NMD. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text