【摘 要】
：
采用高温熔融法制备了以B2O3-A12O3-Gd2O3为基质系统的Ce掺杂闪烁玻璃,通过透过、激发、发射光谱和荧光衰减曲线对样品的光学性能进行研究.实验结果表明：由于玻璃组成中添加了高浓度的Gd2O3,使得玻璃密度达到3.7g/cm3；由于Ce3+离子的4f→5d电子跃迁和Ce4+离子的O2-→Ce4+电荷转移吸收,紫外透过截止波长随着Ce掺杂浓度的增加明显红移；玻璃样品的荧光发射为峰值位于350
【机 构】
：
长春理工大学材料科学与工程学院,吉林长春,130022 长春理工大学材料科学与工程学院,吉林长春,
【出 处】
：
第八届中国功能玻璃学术研讨会暨新型光电子材料国际论坛
论文部分内容阅读
采用高温熔融法制备了以B2O3-A12O3-Gd2O3为基质系统的Ce掺杂闪烁玻璃,通过透过、激发、发射光谱和荧光衰减曲线对样品的光学性能进行研究.实验结果表明：由于玻璃组成中添加了高浓度的Gd2O3,使得玻璃密度达到3.7g/cm3；由于Ce3+离子的4f→5d电子跃迁和Ce4+离子的O2-→Ce4+电荷转移吸收,紫外透过截止波长随着Ce掺杂浓度的增加明显红移；玻璃样品的荧光发射为峰值位于350nm附近的宽带,对应于Ce3+离子的5d→4f跃迁,受Ce3+离子的浓度猝灭和Ce4+离子吸收的影响,发射强度掺杂随浓度的增加而逐渐减弱并略有红移；由于Gd3+离子和Ce3+离子激发带的重叠,使玻璃中存在Gd3+→Ce3+的能量迁移机制；玻璃样品的荧光衰减时间在28～35ns之间,可以用来探测快速事件.
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