Abstract In present work, we succeeded in synthesizing new series of upconversion materials as Ba1-x (Ca/Sr)x GdF5: Er3+, Yb3+ by hydrothermal method. Surprisingly, we found that the doping of both ions can apparently affect the optical performance of these materials. The Ca2+ doping increases the proportion of green light while the Sr2+ doping increases the proportion of red light, which could be used in emission color tuning. Meanwhile, when the ion doping amount reaches 15%, the luminescence intensity of the two materials is 5–6 times higher than that of undoped materials respectively, which reveals that the luminescence efficiencies are great improved. This study testifies that this new series of Ba1-x(Ca/Sr)xGdF5: Er3+, Yb3+ exhibit great potential in the application of new developed upconversion materials.

中文翻译：

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Ba1-x(Ca/Sr)xGdF5: Er3+、Yb3+的合成及其上转换特性

摘要 在目前的工作中，我们通过水热法成功合成了一系列新的上转换材料Ba1-x (Ca/Sr)x GdF5: Er3+, Yb3+。令人惊讶的是，我们发现两种离子的掺杂都会明显影响这些材料的光学性能。Ca2+ 掺杂增加了绿光的比例，而 Sr2+ 掺杂增加了红光的比例，可用于发射颜色的调节。同时，当离子掺杂量达到15%时，两种材料的发光强度分别比未掺杂的材料高5-6倍，表明发光效率有很大的提高。这项研究证明了这个新系列的 Ba1-x(Ca/Sr)xGdF5: Er3+, Yb3+ 在新开发的上转换材料的应用中表现出巨大的潜力。