光谱学与光谱分析, 2009, 29 (5): 1205, 网络出版: 2010-05-25   

掺Eu3+镉铝硅酸盐玻璃的制备及光谱性质研究

Preparation and Luminescence Properties of Eu3+-Doped Cadmium Aluminium Silicate Glass
作者单位
1 燕山大学理学院, 河北 秦皇岛 066004
2 燕山大学红外光纤与传感研究所, 河北 秦皇岛 066004
摘要
农作物的生长和收成与光合作用有密切关系, 垂直照射的日光中绿光成分转化成对植物有强吸收的蓝光和红光并对其进行人工模拟光环境是十分有意义的。 稀土离子掺杂到玻璃材料中具有波长转换功能。 基于上述两点, 该文应用高温熔制方法制备了掺Eu3+镉铝硅酸盐玻璃, 测试了样品的吸收光谱、 激发光谱、 发射光谱, 均获得了红、 蓝光的强发射。 存在并给出对应强吸收峰的最佳掺杂浓度。 由于Cd2+的加入产生电荷迁移带红移到320 nm 左右。 可以看出选择不同的碱金属离子可以调节玻璃蓝色光的相对发射强度。 根据J-O理论, 计算其光学跃迁的强度参数Ω2和Ω4, 可以获得材料结构的有序和对称情况。
Abstract
The growth and harvest of crops are closely related to photosynthesis and plants have strong absorption of red and blue light, in which red light has helminthic function. So it is very meaningful to transform the rest light in the vertical element of sunlight into red and blue light. The authors can simulate artificial light enviro nment in order to develop green agriculture and increase production of plants. As we all know, rare-earth doped Eu3+glass materials have wavelength conversion function. Based on the two views of the above, in this paper, the authors have prepared doped Eu3+cadmium aluminium silicate glasses by high temperature solid-state reaction method. The absorption spectra, excitation spectra, emission spectra are obtained by experiment at room temperature, in which have strong red and blue emissions. Gain the best concentration of doping corresponding to the strongest absorption peak. The charge-transfer band (CT band)is moved to 320 nm (red shift)due to the addition of Cd2+. By changing alkali metal ions, we can adjust and mix different intensity of blue light according to the demand. Based on J-O theory, we can gain the structure order of samples by calculating intensity parameter Ω2 and Ω4.

陈月娥, 侯蓝田. 掺Eu3+镉铝硅酸盐玻璃的制备及光谱性质研究[J]. 光谱学与光谱分析, 2009, 29(5): 1205. CHEN Yue-e, HOU Lan-tian. Preparation and Luminescence Properties of Eu3+-Doped Cadmium Aluminium Silicate Glass[J]. Spectroscopy and Spectral Analysis, 2009, 29(5): 1205.

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