【摘 要】
：
上转换发光是指将稳态的低能量光子转化为高能光子的过程,其主要包括基于稀土离子f-f跃迁过程的上转换发光和基于三重态-三重态淹没的上转换发光过程.因这种上转换发光性质是
【机 构】
：
复旦大学化学系,上海,200433
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上转换发光是指将稳态的低能量光子转化为高能光子的过程,其主要包括基于稀土离子f-f跃迁过程的上转换发光和基于三重态-三重态淹没的上转换发光过程.因这种上转换发光性质是其它荧光材料所不具备的,可以消除生物样品的自发荧光.我们最近开发出上转换发光成像系统,并合成出一系列水溶性的稀土上转换发光纳米材料和基于三重态-三重态淹没过程的上转换发光纳米材料,它们表现出优异的上转换发光性质,并实现高灵敏度的小动物活体上转换发光成像.
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