Abstract
This paper deals with an investigation on the photoluminescence (PL) properties of PP+PbS/CdS nanocomposites at different temperatures ([Formula: see text], [Formula: see text] and [Formula: see text]) under vacuum. The optical bandgap was calculated on the basis of the spectra of UV absorption and it was shown that after thermal treatment the nanocomposites optical bandgap changed. The change has been attributed to the modification of the upper molecular structure of the polymer matrix due to the thermal process. The luminescence spectra of nanocomposites before and after thermal treatment at different temperatures ([Formula: see text], [Formula: see text] and [Formula: see text]) under vacuum were also measured and discussed. A very high luminescence intensity was observed after thermal treatment at [Formula: see text] temperature. This was attributed to the luminescent centers’ increase and the optimal structure formation.
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