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Luco Hybrid

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https://www.readbyqxmd.com/read/24638041/straightforward-fabrication-of-stable-white-leds-by-embedding-of-inorganic-uv-leds-into-bulk-polymerized-polymethyl-methacrylate-doped-with-organic-dyes
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Daniela Di Martino, Luca Beverina, Mauro Sassi, Sergio Brovelli, Riccardo Tubino, Francesco Meinardi
Stable white-emitting down-converted LEDs are straightforwardly prepared by bulk polymerization of an organic dye doped polymethyl-methacrylate (PMMA) shell directly on top of a highly efficient commercial blue-emitting InGaN LED. Our optimized polymerization procedure allows for extending the form factor of achievable luminescence converter (LUCO) material beyond the conventional thin film form and to directly produce devices with light bulb design. The selected organic dyes, the blue-emitting Coumarin 30 and a red-emitting diketopyrrolopyrrole derivative, exhibit high compatibility with the free radical polymerization reaction of the PMMA matrix and ensure high stability of the final hybrid device...
2014: Scientific Reports
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