采用坩埚下降法生长了Dy3+掺杂浓度分别为0.1 mol%、0.2mol%、0.3mol%、2mol%、3mo1%和4mol%的Bi4Si3O12(BSO)晶体.发现高浓度(2mol%以上)掺杂能够显著改变BSO晶体的析晶行为,晶体表面析出物完全消失,顶部呈现光滑结晶面;低浓度(低于0.3mol%)掺杂能够显著提高晶体的光输出,最高可达纯BSO的145%.晶体热释光谱测试结果表明:少量Dy3+掺杂虽然热释光峰略有增强,但有利于晶体光产额的提高;高浓度掺杂则容易引起晶格畸变,甚至产生新的缺陷,降低晶体的光产额.
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