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Aluminium gallium nitride
AlGaN is used to manufacture light-emitting diodes operating in blue to ultraviolet region, where wavelengths down to 250 nm (far UV) were achieved. It is also used in blue semiconductor lasers. It is also used in detectors of ultraviolet radiation, and in AlGaN/GaN HEMT transistors.
AlGaN layers can be also grown on sapphire.
Safety and toxicity aspects
The toxicology of AlGaN has not been fully investigated. The AlGaN dust is an irritant to skin, eyes and lungs. The environment, health and safety aspects of aluminium gallium nitride sources (such as trimethylgallium and ammonia) and industrial hygiene monitoring studies of standard MOVPE sources have been reported recently in a review .
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Aluminium_gallium_nitride". A list of authors is available in Wikipedia.|