LED structure Top view of LED Ultraviolet light
emission from LED

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Aluminum Nitride Light-Emitting Diodes with the Shortest Wavelength

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Aluminum nitride (AlN) is a direct-bandgap semiconductor with a bandgap energy of 6 eV, the largest among semiconductors, and is therefore promising for light-emitting devices with the shortest wavelength for semiconductors. Recently, we have succeeded in p-type and n-type doping of AlN, and have fabricated a p-n homojunction AlN light-emitting diode (LED). (Page 16)


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