Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 311-316 |
| Number of pages | 6 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 452 |
| Publication status | Published - 1 Jan 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1996 MRS Fall Meeting - Boston, MA, USA Duration: 2 Dec 1996 → 6 Dec 1996 |