Broadband emission in the near-infrared range in glasses doped with PbS quantum dots and Er3+ ions

Abstract

This work presents borosilicate glasses co-doped with PbS quantum dots and Er³⁺ ions for broadband NIR luminescence. The heat- treatment increased the absorbance of glass in the visible range and shits absorption edge towards longer wavelengths. Glass co-doped with PbS/Er³⁺ after heat-treatment at 490°C showed broadband luminescence in 1-1.6 µm range under pumping at the wavelength of 980 nm. In the case of pumping at the wavelength of 808 nm, the obtained band was lower due to non-radiative processes and finally, lower intensity of Er³⁺ ions luminescence.

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References

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