Enhancement and quenching of photoluminescence from silicon quantum dots by silver nanoparticles in a totally integrated configuration | Zendy

Abdellah Benami | Zendy; A. López-Suárez | Zendy; L. Rodrı́guez-Fernández | Zendy; A. Crespo-Sosa | Zendy; J.C. Cheang-Wong | Zendy; J. A. ReyesEsqueda | Zendy; A. Oliver | Zendy

Open Access

Enhancement and quenching of photoluminescence from silicon quantum dots by silver nanoparticles in a totally integrated configuration

Author(s) -

Abdellah Benami,

A. López-Suárez,

L. Rodrı́guez-Fernández,

A. Crespo-Sosa,

J.C. Cheang-Wong,

J. A. ReyesEsqueda,

A. Oliver

Publication year - 2012

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.3701696

Subject(s) - photoluminescence , annealing (glass) , quenching (fluorescence) , materials science , silicon , quantum dot , ion implantation , ion , nanoparticle , luminescence , analytical chemistry (journal) , optoelectronics , nanotechnology , chemistry , fluorescence , optics , metallurgy , physics , organic chemistry , chromatography

In this study, Si QDs were formed inside silica matrix by implantation and annealing. Subsequent implantations with Ag+2 ions at different energies were performed in order to vary the distance between the previously formed Si QDs and newly aggregated Ag NPs. The coupling between them was observed through the PL energy and intensity from Si QDs. A PL enhancement is well evidenced at the lowest implantation energy (1 MeV), but at higher energies, a decrease in intensity (2 MeV) and a quenching (3 MeV) are observed

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