Blue Emitters Based on Aryl End-Capped Pyrene Groups for OLEDs
| Autor: | Seong-Hyo Park, S.-B. Lee, Yun Kwon Kim, Ju Jin Kim, Yoon Song-Woo, Hyo-Soo Lee, Chuntae Kim |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Light Biomedical Engineering Bioengineering 02 engineering and technology Electroluminescence 01 natural sciences Coupling reaction chemistry.chemical_compound 0103 physical sciences OLED Electrochemistry General Materials Science 010302 applied physics Pyrenes business.industry Aryl General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry Optoelectronics Pyrene Quantum efficiency Spectrophotometry Ultraviolet 0210 nano-technology business Luminous efficacy Electrical efficiency |
| Zdroj: | Journal of nanoscience and nanotechnology. 16(3) |
| ISSN: | 1533-4880 |
| Popis: | We have synthesized four pyrene-derived blue emitting materials using Suzuki cross coupling reactions. All OLED devices using these materials as emitting materials showed efficient blue electroluminescence (EL). Particularly, a device using 1,1'-(9,9-dimethyl-9H-fluorene-2,7-diyl)bis-pyrene (1) showed best EL properties with the luminous efficiency of 4.32 cd/A, the power efficiency of 3.98 lm/W and the external quantum efficiency of 2.48% at 500 cd/m2. |
| Databáze: | OpenAIRE |
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