A reliable and stable ratiometric luminescence thermometer based on dual near-infrared emission in a Cr<sup>3+</sup>-doped LaSr<sub>2</sub>Ga<sub>11</sub>O<sub>20</sub> phosphor
Xihui Shan, Michele Back, Dongxun Chen, Shihai Miao, Ruiqi Shi, Yanjie Liang
Abstract
A reliable and stable ratiometric luminescence thermometer with a high relative sensitivity (2.6%·K −1 at 190 K) is realized using a LaSr 2 Ga 11 O 20 :Cr 3+ phosphor.
Topics & Concepts
LuminescenceThermometerPhosphorMaterials scienceDopingInfraredAnalytical Chemistry (journal)FluorescenceOptoelectronicsOpticsPhysicsChemistryOrganic chemistryQuantum mechanicsLuminescence Properties of Advanced MaterialsPerovskite Materials and ApplicationsOptical properties and cooling technologies in crystalline materials