项目名称: 新疆天然方钠石发光特性及其应用研究
项目编号: No.11264040
项目类型: 地区科学基金项目
立项/批准年度: 2013
项目学科: 数理科学和化学
项目作者: 艾尔肯·斯地克
作者单位: 新疆师范大学
项目金额: 60万元
中文摘要: 本项目结合新疆硅酸盐矿物资源极为丰富的地缘优势, 用发光学、材料学和矿物学的研究方法,对新疆各地方钠石矿石的独特发光特性其应用探索进行系统研究。通过XRD、电子探针、ICP-OES、稳态/瞬态荧光光谱、时间分辨荧光光谱仪、吸收谱、拉曼谱、红外光谱等研究手段,揭示新疆各地各类方钠石的结构和成分、微量元素种类和价态、发光起因、发光中心种类、能带结构、能量传递的方式等重要的物理和化学性质,并进一步揭示其发光机理。以天然方钠石作基质晶体,去除猝灭剂,通过掺杂合适的激活剂、进行热处理等研究手段,提高天然方钠石的发光效率,实现其实际应用。依据方钠石的结构成份及其发光性能研究,研制出高亮度、高效率、环保的发光材料,为探索新基质的发光材料提供理论基础和技术路线。该研究项目,符合国家实施西部大开发战略,有利于发挥新疆非金属矿物资源优势,使新疆资源优势转化为产业优势,研究成果在发光材料领域具有很好的应用前景。
中文关键词: 方钠石;荧光粉;发光机理;发光材料;白光LED
英文摘要: Noticing a geographical advantage of extremely rich silicate mineral resources in Xinjiang, we research systemically luminescence properties of natural sodalite from Xinjiang by means of research methods of luminescence science, material science and mineralogy. Using a powder X-ray diffraction (XRD) system, an electron probe microanalyzer (EPMA), an inductively coupled plasma-optical emission spectrometer (ICP-OES) and a steady state & Fluorescence Lifetime spectrometer, time-resolved fluorescence spectrometer, absorption spectrum, Raman spectroscopy and infrared spectroscopy analysis ,we reveal some important physical and chemical characters of sodalite, such as components and structures, species and valence of trace elements, origins of luminescence, kinds of luminescent center, defects in crystal, energy-band structure and models of energy transfer, and reveal the luminescence mechanism. By doping various activators into natural sodalite as host crystal, and eliminating quenchers by heat treatment, we improve application value of natural luminescent minerals. We prepare luminescent materials with high luminance efficiency and environment protection, resulting from investigation on luminescence properties of sodalite. Therefore, we offer theoretical basis and technical idea for developing and researching ne
英文关键词: Sodalite;Photoluminescence;luminous mechanism;luminescent materials;white-LED