Thick GaN layers grown by HVPE on different starting layers were examined. The resulting layers were found to be homogeneous with good crystalline and surface quality over the whole 2-inch wafer, strongly depending on the starting layers and gas phase composition. Electrical characterization by Hall measurements and C-V measurements on Schottky diodes was performed.
Jeremy Luterbacher, Songlan Sun, Farzaneh Talebkeikhah
Frédéric Mila, Samuel Louis Nyckees