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Nanoscale Res Lett. 2013 Feb 22;8(1):98. doi: 10.1186/1556-276X-8-98.

On the origin of emission and thermal quenching of SRSO:Er3+ films grown by ECR-PECVD.

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  • 1Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, Wroclaw 50-370, Poland. artur.p.podhorodecki@pwr.wroc.pl.

Abstract

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.

PMID:
23433189
[PubMed]
PMCID:
PMC3665460
Free PMC Article

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