Abstract
The influence of the properties of the environment interacting with the surface of crystal phosphor on its radiative recombination has been considered. The influence of treatment with hexane and toluene on the state of the surface of powdery ZnS:Cu:Cl has been investigated. It has been shown that treatment with hexane and toluene leads to an increase in the photoluminescence intensity of the luminophor under investigation. On the basis of the analysis of the luminescence and photoluminescence excitation spectra, a model explaining the change in the concentration of radiationless recombination centers on the surface of powdery ZnS:Cu:Cl is proposed. It has been shown that the interaction between the above organic liquids and the luminophor surface leads to its passivation and improvement of the luminescent properties of the luminophor.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 72, No. 6, pp. 799–804, November–December, 2005.
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Bacherikov, Y.Y., Okhrimenko, O.B., Tomashik, Z.F. et al. Activation of zinc sulfide luminescence by modifying its surface by organic solvents. J Appl Spectrosc 72, 877–882 (2005). https://doi.org/10.1007/s10812-006-0019-y
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DOI: https://doi.org/10.1007/s10812-006-0019-y