Home > News > Large area GaN substrates

Large area GaN substrates

Free-standing GaN substrates were fabricated by hydride-metal organic vapor phase epitaxy (H-MOVPE) on closely lattice-matched LiGaO2 substrates. The key to obtaining GaN films on LiGaO2 was the initial surface nitridation step. Nitriding and cooling processes were found to be critical film–substrate self-separation. The GaN surface morphology of the GaN was determined by AFM; the structural quality was analyzed by XRD; the chemical composition was investigated by AES, ESCA, and SIMS. Raman spectroscopy was applied for film and substrate characterization.
 H-MOVPE reactor schematic.
Fig. 1. H-MOVPE reactor schematic.
Source: Materials Science and Engineering: B
If you need more information about Large area GaN substrates,please visit:http://www.qualitymaterial.net/ or send us email at sales@qualitymaterial.net