Nitridation effects of GaP(111)B substrate on MOCVD growth of InN

Autor: Akihiro Hashimoto, Akio Yamamoto, Ashraful G. Bhuiyan, R Ishigami
Rok vydání: 2000
Předmět:
Zdroj: Journal of Crystal Growth. 212:379-384
ISSN: 0022-0248
DOI: 10.1016/s0022-0248(00)00322-5
Popis: InN films have been grown on GaP(1 1 1)B substrate using metalorganic chemical vapor deposition (MOCVD). Nitridation effects of GaP(1 1 1)B substrate on MOCVD growth of InN have been clarified. It is revealed that single crystalline InN films can be obtained on GaP(1 1 1)B only when the nitridation of the substrate is not made intentionally. InN films grown on nitrided GaP(1 1 1)B are found to be polycrystalline. XPS analysis shows the formation of PNx as well as GaN after the nitridation of GaP(1 1 1)B substrate surfaces by flowing NH3 above 500°C. Formation of PNx is responsible for the poor crystalline structure of InN. Differences in nitridation behavior between GaP and GaAs are also discussed.
Databáze: OpenAIRE