Co-deposition and tuned blue emission color from new tetraphenylethylene derivatives
| Autor: | Soo-Kang Kim, Jongwook Park, Se-Young Oh |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Anthracene
Materials science Metals and Alloys Co deposition Surfaces and Interfaces Tetraphenylethylene Photochemistry Luminance Blue emission Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Materials Chemistry OLED Luminescence Layer (electronics) |
| Zdroj: | Thin Solid Films. 517:1349-1353 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/j.tsf.2008.09.038 |
| Popis: | By combining tetraphenylethylene and anthracene, we synthesized 9,10-bis(4-(1,2,2-triphenylvinyl)phenyl)anthracene [BTPPA] and 1,2-di(4′-tert-butylphenyl)-1,2-bis(4′-(anthracene-9-yl)phenyl)ethene [BPBAPE]; both BTPPA and BPBAPE have similar band-gaps, however their PL spectra were shifted by about 30 nm with respect to each other. The fabricated multilayered non-doped OLED devices based on pure BTPPA or BPBAPE exhibited luminance efficiencies of 3.93 cd/A at 6.8 V and 10.33 cd/A at 8.1 V, respectively, at 10 mA/cm2. As the BPBAPE content of the emitting layer increased, the luminance efficiency of the device increased; in addition, the CIE coordinates of the fabricated devices shifted gradually from deep-blue for pure BTPPA to sky-blue for pure BPBAPE. |
| Databáze: | OpenAIRE |
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