N Type 4inch Dia100mm Free Standing HVPE GaN Gallium Nitride Wafer

2inch free-standing GaN substrates,GaN wafer for LD,semiconducting Gallium
Nitride Wafer for led,GaN template,10x10mm GaN substrates, native GaN wafer,



GaN Applications



GaN can be used to make several types of devices; the primary GaN devices
are LEDs, laser diodes, power electronics, and RF devices.

GaN is ideal for LEDs because of the direct bandgap of 3.4 eV which is in
the near UV spectrum. GaN can be alloyed with InN and AlN, which have
bandgaps of 0.7 eV and 6.2 eV, respectively. Therefore, this material
systems can theoretically span a large energy spectrum for light emitting
device. In actual practice, the efficiency is highest for blue InGaN devices
and decreases for high indium content InGaN or for AlGaN emitters. The near
UV and blue spectrum is optimal for making white emitters with phosphors,
and this technology has been responsible for the remarkable efficiency gains
in lighting since the 1990s when LEDs have begun to replace traditional
light sources.



Laser diodes, usually with blue emission, can be made using GaN. These
devices are used for displays and some specialty biomedical, cutting, and
scientific applications. Laser diodes can also be used for making white
light emitting devices with phosphors. Compared to LEDs, laser diode white
light can achieve a very high power density and high directionality.



For power electronics, GaN-based devices can achieve high switching speeds,
high power density, and low energy losses resulting in more efficient,
smaller, and lighter power conversion products. There are numerous
applications for GaN-based power electronics including electric vehicles,
solar and wind energy inverters, industrial motor controllers, data centers,
and consumer electronics.



GaN-based RF devices possess many of the same advantages of GaN power
electronics, and additionally can access higher frequency than traditional
semiconductors. RF devices are used for industrial heating, radar, and
telecommunications. GaN is especially advantageous for high power density
such as for cellular base stations.

Click to Enlarge