Sensitized photoluminescence of erbium silicate synthesized on porous silicon framework

Er silicate/porous silicon (PS) composites with effective sensitized erbium emission at 1.53 μm have been synthesized on the PS framework. Cross-sectional scanning electron microscopy and X-ray diffraction reveal that the PS is coated by Er silicate in composites. Indirect excitation of Er3+ ion lum...

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Veröffentlicht in:Journal of applied physics 2017-09, Vol.122 (11)
Hauptverfasser: Shen, Hao, Xu, Lingbo, Li, Dongsheng, Yang, Deren
Format: Artikel
Sprache:eng
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Zusammenfassung:Er silicate/porous silicon (PS) composites with effective sensitized erbium emission at 1.53 μm have been synthesized on the PS framework. Cross-sectional scanning electron microscopy and X-ray diffraction reveal that the PS is coated by Er silicate in composites. Indirect excitation of Er3+ ion luminescence via energy transfer from PS is confirmed. The temperature dependence of Er-related photoluminescence intensity and lifetime is investigated, which concludes a phonon-mediated energy transfer process. The combination of the PS framework and Er silicate provides a possible strategy for practical silicon-based light sources.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4987035