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

被引：0
|
作者：
Counio, G
Esnouf, S
Gacoin, T
Barboux, P
Hofstaetter, A
Boilot, JP
机构：
来源：
ADVANCES IN MICROCRYSTALLINE AND NANOCRYSTALLINE SEMICONDUCTORS - 1996 | 1997年 / 452卷
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T [工业技术];
学科分类号：
08 ;
摘要：
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.
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页码：311 / 316
页数：6
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