A Study of MOCVD-Grown Gallium Nitride Nucleation Layers on Sapphire

Autor: A. Estes Wickenden, Scott A. Ecelberger, T. J. Kistenmacher, D. K. Wickenden, T. O. Poehler
Rok vydání: 1992
Předmět:
Zdroj: MRS Proceedings. 280
ISSN: 1946-4274
0272-9172
DOI: 10.1557/proc-280-355
Popis: Nucleation layers of GaN have been deposited in an MOCVD reactor on (0001) sapphire, over a range of temperatures and layer thicknesses, using either N2 or H2 carrier gas. The layers have been found to be continuous, textured films as deposited at low temperatures (600°C), but to reorder upon annealing, segregating into nucleation sites which exhibit the normal heteroepitaxial relationship with the sapphire substrate.
Databáze: OpenAIRE