Opt Lett. 2019 Aug 1;44(15):3633-3636. doi: 10.1364/OL.44.003633.
The development of optical thermometers operating within the first biological window (650-1000 nm) has drawn great interest lately in the biological and medical fields. Here a new type of luminescent thermometer relying on the intensity ratio between G1-F3 (652 nm) and F3-H3(691 nm) transitions in Tm/Yb:BaMoO phosphor is reported under 980 nm excitation. The thermometry is found to be independent on the excitation power, benefiting the reduction of the measurement error. Moreover, it exhibits extremely high absolute sensitivity ranging from 210.5×10 to 1034.5×10 K in 298-498 K. The maximal relative sensitivity and temperature resolutions (1.36% K and 0.37 K, respectively) are also among the highest values of those previous thermometric materials. This Letter provides guidance in selecting the suitable emission bands to construct the ratiometric luminescent thermometers with high performance.
最近，在生物和医学领域，工作在第一生物窗口（650-1000nm）内的光学温度计的发展引起了极大的兴趣。在这里，我们报道了一种新型的依赖于 Tm/Yb:BaMoO 荧光粉在 980nm 激发下 G1-F3（652nm）和 F3-H3（691nm）跃迁之间的强度比的荧光温度计。这种温度计发现与激发功率无关，有利于减少测量误差。此外，它在 298-498K 范围内表现出极高的绝对灵敏度，范围从 210.5×10 到 1034.5×10 K。最大的相对灵敏度和温度分辨率（分别为 1.36% K 和 0.37 K）也是之前测温材料中最高的。这封信为选择合适的发射带提供了指导，以构建具有高性能的比率荧光温度计。
