Résumé
We use positron lifetime studies of GaAs materials to discuss the defect properties which can be investigated by implanting positive positrons in semiconductors. The studies concern native and electron irradiation induced defects. The results show that vacancy charge state and vacancy ionization levels can be determined from positron annihilation. They show also that positrons are trapped by negative ions and give information on their concentration.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 241-256 |
| Nombre de pages | 16 |
| journal | Progress in Crystal Growth and Characterization of Materials |
| Volume | 25 |
| Numéro de publication | 4 |
| Les DOIs | |
| état | Publié - 1 janv. 1992 |
| Modification externe | Oui |
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