Abstract A new temperature measurement strategy based on the luminescence of Ce3+ and Tb3+ doped YBO3 was proposed. Dual emissions of Ce3+ and Tb3+ have different thermal dependencies, which can be used to overcome those limitations such as low signal discriminability and large measurement error. A series of Ce3+ and/or Tb3+ doped YBO3 samples were synthesized by hydrothermal method, and the influences of temperature on the photoluminescence (PL) intensity of Ce3+ 5d-4f transition and Tb3+ 4f-4f transition were discussed in detail. Compared with the single emission of YBO3:1.0%Ce3+, fluorescence intensity ratio (FIR) variation of Ce3+ blue emission and Tb3+ green emission in YBO3:1.0%Ce3+, 1.0%Tb3+ has been studied as a function of temperature in the range of 288–328 K. The absolute sensitivity of YBO3:1.0%Ce3+, 1.0%Tb3+ was 1.18 %K−1, higher than that of YBO3: 1.0%Ce3+ (0.70 %K−1). The results suggest that YBO3:Ce3+, Tb3+ is a good candidate as optical thermometry in the physiological range.

中文翻译：

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基于YBO3:Ce3+、Tb3+双发射的比例热传感

摘要 提出了一种基于Ce3+和Tb3+掺杂YBO3发光的测温策略。Ce3+ 和 Tb3+ 的双发射具有不同的热相关性，可用于克服信号可辨别性低和测量误差大等局限性。采用水热法合成了一系列Ce3+和/或Tb3+掺杂YBO3样品，详细讨论了温度对Ce3+ 5d-4f跃迁和Tb3+ 4f-4f跃迁光致发光强度的影响。与 YBO3:1.0%Ce3+ 的单次发射相比，YBO3:1.0%Ce3+ 中 Ce3+ 蓝色发射和 Tb3+ 绿色发射的荧光强度比 (FIR) 变化已被研究为 288 度范围内温度的函数–328 K。 YBO3:1.0%Ce3+, 1.0%Tb3+ 的绝对灵敏度为 1.18%K−1，高于 YBO3：1.0%Ce3+ (0.70%K−1)。结果表明，YBO3:Ce3+、Tb3+ 是生理范围内光学测温的良好候选物。