In order to grow a uniform epitaxial layer of gan across the entire surface the surface of the sapphire substrate is tilted slightly along the c plane.
C plane sapphire substrate.
The optical band gap of hexagonal boron nitride h bn epitaxial film is investigated by means of transmittance and reflectance measurements.
Other applications include infrared detectors mercury cadmium telluride wafer carriers and general optics.
X ray diffraction and reflection high energy electron diffraction reveal that the h bn epitaxial film has a smooth surface and the epitaxial relationship is found to be 0001 h bn 0001 sapphirewith an in plane orientation.
C plane sapphire substrates c plane 0001 orientation sapphire polished substrates are used for growth of gan and other iii v and ii vi compounds when manufacturing led s.
Therefore each layer is 0 22 nm thick.
Sapphire substrate c plane.
Other applications include mercury cadmium telluride for infrared detector applications.