Abstract
Hut- and dome-shaped islands have been observed during low-pressure vapour phase epitaxy (LPVPE) of Ge on Si(001) at 700 °C. The experiments show an island height increase with increasing deposition time (total Ge-coverage was kept constant). The shape transition from huts to domes, which takes place after hut clusters have reached a baselength of 90 nm, indicates that huts are not a stable configuration. The two different island types are found to be the reason for the bimodal nature of the size distribution. Photoluminescence measurements show a linear correlation between hut cluster density and integrated photoluminescence intensity.
Original language | English (US) |
---|---|
Pages (from-to) | 251-256 |
Number of pages | 6 |
Journal | Materials Science and Engineering B: Solid-State Materials for Advanced Technology |
Volume | 69 |
DOIs | |
State | Published - Jan 14 2000 |
Externally published | Yes |
Event | The European Materials Research Society 1999 Spring Meeting, Symposium I: Microcrystalline and Nanocrystalline Semiconductors - Strasbourg, France Duration: Jun 1 1999 → Jun 4 1999 |
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering