Résumé
Mn2+-doped CdS nanocrystals (1.2 to 2.4 nm in diameter) embedded in organic-inorganic silica xerogels have been synthesized. Extensive studies (EXAFS, ESR and ENDOR) allow us to localize the ions responsible for the bright luminescence observed in such materials (quantum yield of 7%). The average number of Mn2+ per nanocrystal is in the 0.2-0.8 range, and the emission arises from an energy transfer from surface trapped carriers to Mn2+ ions.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 311-316 |
| Nombre de pages | 6 |
| journal | Materials Research Society Symposium - Proceedings |
| Volume | 452 |
| état | Publié - 1 janv. 1997 |
| Modification externe | Oui |
| Evénement | Proceedings of the 1996 MRS Fall Meeting - Boston, MA, USA Durée: 2 déc. 1996 → 6 déc. 1996 |
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