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New data are reported concerning the luminescence of PbI2 single crystals submitted to thermal treatments. Both the analysis of this luminescence by time-resolved spectroscopy and its dependence on the thermal treatment and the perfection of the lattice indicate the existence of complex luminescent centres. By extending the photoconduction and absorption studies into the near IR, supplementary data are obtained concerning the levels induced in the energy band gap due to the centres created by thermal treatment and irradiation.
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Baltog et al. (1979) studied this question.
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