期刊
SCIENTIFIC REPORTS
卷 3, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep02672
关键词
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资金
- French National Research Agency [HYNNA ANR-10-BLAN-1016, TWINS ANR-11-BS10-002]
- NanoMat by the Ministere de l'enseignement superieur et de la recherche
- Conseil regional Champagne-Ardenne
- Fonds Europeen de Developpement Regional (FEDER)
- Conseil general de l'Aube
- ICEEL institute
- CNRS (grant MELUSINE)
Silicon nanocrystals offer huge advantages compared to other semi-conductor quantum dots as they are made from an abundant, non-toxic material and are compatible with silicon devices. Besides, among a wealth of extraordinary properties ranging from catalysis to nanomedicine, metal nanoparticles are known to increase the radiative emission rate of semiconductor quantum dots. Here, we use gold nanoparticles to accelerate the emission of silicon nanocrystals. The resulting integrated hybrid emitter is 5-fold brighter than bare silicon nanocrystals. We also propose an in-depth analysis highlighting the role of the different physical parameters in the photoluminescence enhancement phenomenon. This result has important implications for the practical use of silicon nanocrystals in optoelectronic devices, for instance for the design of efficient down-shifting devices that could be integrated within future silicon solar cells.
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