Luminescent properties of Bi-doped polycrystalline KAlCl4
A. A. Veber, A. N. Romanov, O. V. Usovich, Z. T. Fattakhova, E. V., Haula, V. N. Korchak, L. A. Trusov, P. E. Kazin, V. B. Sulimov, V. B., Tsvetkov
TL;DR
This study investigates the near-infrared luminescence of Bi-doped KAlCl4, revealing that the emission near 1 um originates from Bi+ ions and is influenced by local ion environments.
Contribution
The paper provides new insights into the luminescent behavior of Bi+ ions in KAlCl4 and how local surroundings affect their emission properties.
Findings
Luminescence peaks near 1 um due to Bi+ ions
Luminescence depends on excitation wavelength and temperature
Local ion environment influences luminescence features
Abstract
We observed an intensive near-infrared luminescence in Bi-doped KAlCl4 polycrystalline material. Luminescence dependence on the excitation wavelength and temperature of the sample was studied. Our experimental results allow asserting that the luminescence peaked near 1 um belongs solely to Bi+ ion which isomorphically substitutes potassium in the crystal. It was also demonstrated that Bi+ luminescence features strongly depend on the local ion surroundings.
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