Die Energielandschaft in der "aktiven" Schicht des LED-Materials. Das Galliumnitrid entwickelt kegelförmige Ausbuchtungen rund um die Defekte. Auftreffende Elektronen können dadurch nicht "verschluckt" werden und setzen Photonen frei - die Lichtemission findet statt.
Source: TU Braunschweig - Inst. f. Angewandte Physik
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