Enhanced luminescence of MEH-PPV through the reduction of chain aggregations by blending 4-cyano-4′-N-heptylbiphenyl
| Autor: | Guo-Yuan Li, Shu-Mei Chang, Wei-Ren Liu, Kuei-Ting Hsu |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Photoluminescence business.industry Atomic force microscopy Enhanced luminescence Biophysics Analytical chemistry General Chemistry Electroluminescence Condensed Matter Physics Biochemistry Atomic and Molecular Physics and Optics law.invention Characterization (materials science) Optical microscope Phenylene law Optoelectronics business Luminescence |
| Zdroj: | Journal of Luminescence. 158:447-450 |
| ISSN: | 0022-2313 |
| DOI: | 10.1016/j.jlumin.2014.10.008 |
| Popis: | In this study, we report the electroluminescence and photoluminescence of poly[2-methoxy-5-(2-ethylhexyloxy)- p -phenylene vinylene] (MEH-PPV) and 4-cyano-4′-N-heptylbiphenyl (7CB) blends in the ratios of 0–90 wt% by drop-coating processes. The corresponding characterization of polarized optical microscope, electroluminescence, photoluminescence and atomic force microscope of different blending ratios of MEH-PPV/7CB are systematically carried out in this study. The optimal composition of 6/4 ratio in MEH-PPV/7CB exhibit the highest luminescence, which is almost ten times than that of pure MEH-PPV due to the fact that 7CB could be a barrier to avoid the aggression of MEH-PPV. The novel blending system demonstrate a potential approach for synthesizing the MEH-PPV/7CB composite film for electroluminescent device applications. |
| Databáze: | OpenAIRE |
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