ABSTRACT Er3+/Yb3+ co-doped Nb2O5 nanocrystals were studied for upconversion efficiency and temperature dependence. Under 975 and 1550 nm excitation, the upconversion emissions of the Er3+/Yb3+ co-doped Nb2O5 nanocrystals were studied. The luminescent characteristics of the materials were found to be closely related to environment temperature, Er3+ concentration, pumping power and wavelength. The materials can be applied to fluorescence imaging and fluorescence probe, and so on.

中文翻译：

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Er3+/Yb3+ 共掺杂 Nb2O5 纳米晶体的上转换发射的激发光谱和温度依赖性

摘要 研究了 Er3+/Yb3+ 共掺杂的 Nb2O5 纳米晶体的上转换效率和温度依赖性。在 975 和 1550 nm 激发下，研究了 Er3+/Yb3+ 共掺杂 Nb2O5 纳米晶体的上转换发射。发现材料的发光特性与环境温度、Er3+浓度、泵浦功率和波长密切相关。该材料可应用于荧光成像和荧光探针等。