Determining the parameters of crystal phosphors

Conclusions

• 1. The probability of recombination radiation enables us to determine the correlation between the principal phosphorescence parameter γ and the degree of excitation z, so that the problem is reduced to finding either of these. This makes the correlation method convenient for experimental work.

• 2. The correlation method enables investigation of the temperature dependence of the parameters,

• 3. The principal parameter is determined without relevence to the thermal characteristics ɛ and p₀, which in turn enables us to determine the latter; this removes the limitations imposed on the principal parameter. The correlation method can thus be used to determine the thermal characteristics in the kinetics of electronic processes.

• 4. The very important parameters η, n_o, and ν remain undetermined. They cannot be evaluated, since the differential and integral forms are linear and homogeneous in (1 − γ), γυη, and p (this is why γ is determined by the correlation method). The physical reason for this is nonradiative transition

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