Para-hexaphenylene (p-6P) organic nanofibers emit polarized, blue light upon UV excitation with a peak wavelength of the emitted light of 425 nm  and a spatially anisotropic distribution of the emitted light . These features could enable future (opto-)electronic applications , since, for example, these molecules in the form of a thin film can function as an OLED . However, the nanofibers exhibit a characteristic photoinduced reaction during illumination with UV light that causes a decrease in luminescence intensity (bleaching) and that is partly attributed to photooxidation . Here, we present results of systematic bleaching experiments, in which we have investigated diverse mono- and multilayer coating materials. It is found that the most promising combination results in a significant reduction of bleaching without affecting significantly the emission spectrum.
|Publication date||Sep 2009|
|Publication status||Published - Sep 2009|
|Event||Chemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM) - Milano, Italy|
Duration: 14. Sep 2009 → 19. Sep 2009
|Conference||Chemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM)|
|Period||14/09/2009 → 19/09/2009|
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- Organic nanofibers
Tavares, L., Kjelstrup-Hansen, J., Rubahn, H-G., & Sturm, H. (2009). Reducing bleaching effects in organic nanofibers by coating. Poster session presented at Chemistry and Physics of Materials for Energetics. A European School in Materials Science. Physics and Chemistry of Advanced Materials (PCAM) , Milano, Italy.