| CaS:Cu+磷光体的合成及发光性质 |
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| 引用本文： | 张忠义,苏锵.CaS:Cu+磷光体的合成及发光性质[J].发光学报,1991,12(4):312-317. |
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| 作者姓名： | 张忠义 苏锵 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 本文首先用X光电子能谱分析铜在硫化钙基质中是以一价形式存在的.在掺铜的硫化钙的激发光谱中,有三个吸收峰,峰位分别为268nm、307nm和400nm;在CaS:CuCu+的发射光谱中,产生四个发射峰,峰位分别为430nm、465nm、490nm和610nm.这四个发射峰分别由不同铜离子格位产生的.在Cas:CuCu+的热释发光曲线中,显示单一热释发光峰,峰值温度为120℃,该热释发光峰有可能用作紫外剂量材料.
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| 关 键 词： | 磷光体 CaS：Cu 发光性质 铜 激活剂 |
| 收稿时间： | 1990-10-31 |
PREPARATION AND LUMINESCENCE PROPERTIES OF CaS:Cu PHOSPHORS |
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| Zhang Zhongyi,Su Qiang,L&#,Yuhua.PREPARATION AND LUMINESCENCE PROPERTIES OF CaS:Cu PHOSPHORS[J].Chinese Journal of Luminescence,1991,12(4):312-317. |
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| Authors: | Zhang Zhongyi Su Qiang L&# Yuhua |
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| Institution: | Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022 |
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| Abstract: | CaS:Cu phosphors were prepared and their luminescence properties were studied. Copper is proved to be existed as monovalence in calcium sulphide from X-ray photoelectron spectra. In excitation spectra of CaS:Cu phosphors, three peaks have been observed. The peaks locate at 268nm,307nm and 400nm respectively.The peak of 268nm is overlapped between the excited state 1T2 (37700cm-1) of Cu+ ions and the absorption edge of calcium sulphide, The peak of 307nm is caused by the excited state 1E(32500cm-1) of Cu+ ions. The peak of 400nm is produced by the transformation process of Cu+→Cu2+ e. |
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