期刊
NANOSCALE RESEARCH LETTERS
卷 8, 期 -, 页码 1-12出版社
SPRINGEROPEN
DOI: 10.1186/1556-276X-8-98
关键词
Silicon; Nanocrystals; Erbium; Emission; Quenching; Temperature; Photoluminescence
资金
- Iuventus Plus program [IP2011 042971]
- Natural Sciences and Engineering Research Council of Canada
Silicon nanocrystals embedded in a silicon-rich silicon oxide matrix doped with Er3+ ions have been fabricated by electron cyclotron resonance plasma-enhanced chemical vapor deposition. Indirect excitation of erbium photoluminescence via silicon nanocrystals has been investigated. Temperature quenching of the photoluminescence originating from the silicon nanocrystals and the erbium ions has been observed. Activation energies of the thermally activated quenching process were estimated for different excitation wavelengths. The temperature quenching mechanism of the emission is discussed. Also, the origin of visible emission and kinetic properties of Er-related emission have been discussed in details.
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