Abstract
For noncontact optical thermometry, in contrast with fluorescence intensity ratio (FIR) technology, excitation intensity ratio (EIR) technology has been seriously limited due to low sensitivity. Moreover, by exploring all possible temperature-dependent response, developing multimode optical thermometry is of great importance. In this work, a new Na<sub>2</sub>Y<sub>2</sub>TeB<sub>2</sub>O<sub>10</sub> (NYTB):Tb<sup>3+</sup> phosphor is obtained by a solid-state reaction. Based on FIR and EIR models of Tb<sup>3+</sup>, thermometric properties are studied thoroughly. Excellent relative and absolute sensitivity (<i>S</i><sub>R</sub> and <i>S</i><sub>A</sub>) are acquired due to the significant difference in emission/excitation lines in response to temperature. Meanwhile, Tb<sup>3+</sup> content-dependent luminescence quenching mechanism is discussed. This study shows a feasible route for exploiting well-performing FIR-/EIR-based thermometric materials.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
