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本文研究了S＋H2，S；H2S＋H2；H2S，S＋H2S和S＋H2S十H2等不同气氛下用CaCO3硫化法制备的CaS粉末中的CaSO4和CaO杂质相的含量与反应气氛和反应方法的关系．X射线衍射分析表明，CaSO4和CaO杂质相的含量与反应气氛有密切的联系．CaS粉末中F＋中心（带两个正电荷的S空位俘获一个电子）的数量与反应原材料和CaSO4和CaO杂质相的含量有关．光致发光的激发光谱表明，在CaS：TmF3发光粉末中存在由Tm3＋离子发光中心向F＋中心的能量传递，CaS粉末大量的F＋中心的存在不利于CaS：TmF3蓝色发光效率的提高．通过对不同气氛下制备的CaS粉末F＋中心、CaSO4和CaO杂质相的含量进行分析和比较，找到了制备适用于CaS：TmF3发光材料的CaS粉末的最佳方法．
In this paper, the content of CaSO4 and CaO impurity phases in CaS powder prepared by CaCO3 vulcanization under different atmospheres of S + H2, S; H2S + H2; H2S, S + H2S and S + H2S + H2 were studied in relation to the reaction atmosphere and reaction conditions. X-ray diffraction analysis shows that the content of CaSO4 and CaO impurity phase is closely related to the reaction atmosphere. The amount of F + center (one electron trapped by two S-vacancies with two positive charges) in the CaS powder is related to the reaction starting material and the CaSO4 and CaO impurity phases. The photoluminescence excitation spectrum shows that there is energy transfer from the luminescent center of Tm3 + ion to the center of F + in the CaS: TmF3 luminescent powder. The presence of a large number of F + centers in the CaS powder is not conducive to the enhancement of blue luminescence efficiency of CaS: TmF3. The best method for preparing CaS powder suitable for CaS: TmF3 luminescent material was found by analyzing and comparing the F + center of CaS powder, CaSO4 and CaO impurity phase prepared under different atmosphere.