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Large Upconversion Enhancement in the “Islands” Au-Ag Alloy/NaYF4: Yb3+, Tm3+/Er3+ Composite Films,
【机 构】
：
State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jil
【出 处】
：
第六届全国掺杂纳米材料发光性质学术会议
【发表日期】
：
2016年5期
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稀土掺杂上转换发光(UCL)材料及其应用研究已经成为近年来研究热点,人们尝试多种方式提高UCL效率、光学性能和应用特性.但即使是公认的最高效β-NaYF4：Yb3+,Er3+UCL材料,在980 nm激发下其上转换量子效率(UCQY)也仅为3-4％.以最常用的980 nm激发,555 nm绿色UCL为例,其能量效率只有5.3-7.1％.也就是说,93–95％的激发能量会以热量形式释放,导致样品温度
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