Dc. Lu et al., METAL-ORGANIC CHEMICAL-VAPOR-DEPOSITION GROWTH OF GAN, Materials science & engineering. B, Solid-state materials for advanced technology, 29(1-3), 1995, pp. 58-60
Single-crystal GaN films have been deposited on (01 (1) over bar 2) sa
pphire substrates using trimethylgallium (TMGa) and NH3 as sources. Th
e morphological, crystalline, electrical and optical characterizations
of GaN film are investigated. The carrier concentration ofundoped GaN
increases with decreasing input NH3-to-TMGa molar flow ratio.