Abstract
The blue luminescence of pure and Al-, Au-, Ag-, Cu-, and Mn-doped ZnS crystals has been studied in the temperature range between LNT and RT and for different wavelengths of the exciting UV-light. All investigated crystals emit two blue bands. The energies of the maxima of these emission bands are independent of the temperature. The temperature dependence of the intensity ratio of the two blue luminescence bands can simulate a temperature shift of the blue emission. The experimental results support the assumption of an essentially uniform structure of the luminescence complex responsible for the visible luminescence of pure and doped ZnS phosphors.
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Grasser, R., Roth, G. & Scharmann, A. Excitation and temperature dependence of the blue luminescence of ZnS crystals. Z. Physik 249, 91–100 (1971). https://doi.org/10.1007/BF01397927
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DOI: https://doi.org/10.1007/BF01397927