27 April 2016 Ink-jet printing of host-guest systems based on acrylates with fluorescent dopants
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We present two ink-jet printable, optically active material systems that point towards flexible foil-based optical systems independent of any electrical elements or physical connections. The materials are based on a UV-curable monomer doped with europium and diphenylantracene, resulting in red (610 nm) and blue (430 nm) fluorescence excited by UV light. Additionally, ethylene glycol dimethacrylate (EGDMA) is used to tune the viscosity to 10 mPas via a print-head temperature of 50 °C, as required by the ink-jet print-head. When illuminated with 1.5 W/cm2, the measured intensity of the europium is in the range of 1 mW/cm2. By printing these materials on PMMA foil, we can create fluorescent tracks with a feature size well below 100 μm that could serve as light sources within a planar optronic system.
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Patrick Bollgruen, Patrick Bollgruen, Uwe Gleissner, Uwe Gleissner, Christof Megnin, Christof Megnin, Dario Mager, Dario Mager, Jan Korvink, Jan Korvink, Thomas Hanemann, Thomas Hanemann, "Ink-jet printing of host-guest systems based on acrylates with fluorescent dopants", Proc. SPIE 9888, Micro-Optics 2016, 98880G (27 April 2016); doi: 10.1117/12.2227909; https://doi.org/10.1117/12.2227909

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