In this paper, the tetragonal shuttle-like CaMoO4 :Eu3+ microcrystal is synthesized by the hydrothermal method. Raman and luminescence spectroscopic investigation were carried out to study the structure and luminscence properties up to 24. 7 GPa using a diamond anvil cell. It is found that a reversible phase transformation from tetragonal scheelite to monoclinic fergusonite structure appears at about 4 GPa. Meanwhile, the e-mission peaks of CaMoO4 ;Eu3+ microcrystal red shift slightly and reducing of the intensity ratio between red and orange light indicates the rising of the site symmetry occupied by Eu3+.%本文利用溶剂热方法合成出四方相梭子状CaMoO4∶Eu3+微晶,并利用金刚石对顶砧压机结合Raman光谱和荧光光谱技术研究了其在24.7 GPa压力下的结构和发光性能变化.结果发现,在约4 GPa时发生了从四方白钨矿结构到单斜褐钇铌矿结构的可逆相变.同时,随着压力的增加,CaMoO4∶Eu3+微晶的发光峰发生缓慢红移,红光和橙光强度比的降低说明了Eu3+所处格位局域对称性的升高.
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