Abstract
GaN films were grown on (0001) sapphire by molecular beam epitaxy (MBE). Two sources of activated nitrogen were investigated: an electron cyclotron resonance (ECR) plasma, and hydrogen azide (HN3). With the ECR plasma source, typical growth rates were ∼ 0.1 μm/h. Films grown in this manner showed significant surface damage from ions, and little if any photoluminescence. With HN3, growth rates were ∼ 0.25 μm/h. Azide-grown films showed smooth surfaces, and sharp band-to-band photoluminescence. This is the first reported use of HN3 to grow III–V nitrides by MBE, and it shows great promise as a nitrogen source.
| Original language | English |
|---|---|
| Pages (from-to) | 912-915 |
| Number of pages | 4 |
| Journal | Journal of Crystal Growth |
| Volume | 150 |
| DOIs | |
| Publication status | Published - 1995 |
| Externally published | Yes |
Bibliographical note
Funding Information:This work was supportedb y ONR/ARPA un der contractN o. N00014-93-1-137a5n dby CNOM under contractN o. N00014-92-J-1903.
ASJC Scopus subject areas
- Condensed Matter Physics
- Inorganic Chemistry
- Materials Chemistry