Synthesis of Mn2+ doped CdS nanocrystals embedded in a sol-gel silica matrix: characterization of the luminescence activator

G. Counio, S. Esnouf, T. Gacoin, P. Barboux, A. Hofstaetter, J. P. Boilot

Research output: Contribution to journalConference articlepeer-review

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 languageEnglish
Pages (from-to)311-316
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume452
Publication statusPublished - 1 Jan 1997
Externally publishedYes
EventProceedings of the 1996 MRS Fall Meeting - Boston, MA, USA
Duration: 2 Dec 19966 Dec 1996

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