Abstract
Using blue-emitting GaN/6H-SiC chips as primary light sources, we have fabricated green, yellow, red and white emitting LEDs. The generation of mixed colors, as turquoise and magenta is also demonstrated. The underlying physical principle is that of luminescence downconversion (Stokes shift), as typical for organic luminescent dye molecules. A white emitting LED, using an inorganic converter, Y 3 Al 5 O 12 :Ce 3+ (4f 1 ), has also been realized.
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