Abstract
The annealing behaviour of defect structures in hydrogenated amorphous silicon, produced by hot wire chemical vapour deposition (HWCVD) has been studied by pulsed and conventional positron beam techniques and X-ray diffraction. Positron lifetime measurements show a dominant component corresponding to small vacancy clusters. Doppler Broadening measurements indicate that the size and concentration of defects varies with annealing temperatures up to 400°C. This behaviour is accompanied by a change from the amorphous to a partly crystalline structure, which can be observed by X-ray diffraction studies.
Original language | English |
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Pages (from-to) | 463-465 |
Number of pages | 3 |
Journal | Materials Science Forum |
Volume | 363-365 |
DOIs | |
Publication status | Published - 2001 |
Event | 12th International Conference on Positron Annihilation - Munchen, Germany Duration: 6 Aug 2000 → 12 Aug 2000 |
Keywords
- Crystallisation
- Electron momentum
- Hydrogenated amorphous silicon
- Positron lifetime
- X-ray diffraction
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering