【摘 要】
:
采用熔体急冷法在硅基氟氧化物玻璃中稳定析出1-4 nm银团簇.我们发现,该材料显示出银团簇典型的宽带激发/发射特性和独特的波长相关发射行为,其最大量子产率约为26.9%.实验证明,银团簇可以有效敏化Tb3+/Yb3+离子对的近红外量子剪裁发光(能量传递通道:Ag clusters→Tb3+→Yb3+),使Yb3+离子的发射强度增加至原来的1.52倍.这种贵金属团簇宽带光谱调制的方案有望解决在光伏应
【出 处】
:
第七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
采用熔体急冷法在硅基氟氧化物玻璃中稳定析出1-4 nm银团簇.我们发现,该材料显示出银团簇典型的宽带激发/发射特性和独特的波长相关发射行为,其最大量子产率约为26.9%.实验证明,银团簇可以有效敏化Tb3+/Yb3+离子对的近红外量子剪裁发光(能量传递通道:Ag clusters→Tb3+→Yb3+),使Yb3+离子的发射强度增加至原来的1.52倍.这种贵金属团簇宽带光谱调制的方案有望解决在光伏应用中稀土离子吸收截面小、激发效率低的问题.
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