Synthesis And Photoluminescence Properties Of Natural Sodalite Activated With S、Eu、Mn、Fe

Natural sodalite is a non-metallic mineral sodium aluminum silicate andchlorine. Non-metallic mineral materials, a class of emerging functional mineralmaterials, has become one of the most promising raw materials for high-tech andnew materials and attached extensive attentions due to their great structural,optoelectronical and magnetical performance. It is of great importance to reveal theluminescent characteristics and mechanism of the non-metallic minerals and improvethe efficiency of luminescent materials. The knowledge of human beings about theluminescence closely relates to the understanding of the light-emitting properties ofnatural mineral. Synthesis of luminescent materials is the basis of the light-emittingmaterials research. Especially in recent years, cross-disciplinary development and thedevelopment of new technologies have been well developed, which provides greatopportunities and challenges for the development of luminescent materials. Silicatelight-emitting material is a non-toxic, water-resistant, clean and stable light source.Compared with conventional light emitting materials, silicates have wide excitationspectrum and continuously adjustable emission spectrum, which can meet the needsof the light-emitting functional material. Therefore sodalite silicates with excellentlight-emitting properties have become one of the hot topics.In this paper, the solid state method with different temperature, heat treatmenttime was implied to synthesize S、Eu、Fe、Mn-doped the XINJIANG natural sodalitephotoluminescence powder. Optimal experimental conditions to synthesize sodalitewere determined. Their structures were characterized by XRD. Luminescentproperties of several trace elements (S、Eu、Fe、Mn) in the natural sodalite ofchemical components, were studied by excitation spectrum and emission spectrum atroom temperature. We observed energy transfer between the trace elements. Differentdoping concentrations of trace elements in natural sodalite lead to change of the colorof emission, and phosphors of yellow, green, orange, red and other colors wereobtained. We also find that the luminescent intensity and color of the natural sodalitecan be tuned by changing the proportion of trace elements in natural sodalite. Suchkind of luminescent powders can be applied in near ultraviolet LED, solar cells,tricolor phosphor. Research on luminescent characteristics of sodalite is beneficial todevelop more efficient luminescent materials.