Ultra-wide band near-infrared (NIR) optical thermometry (12–673 K) performance enhanced by Stark sublevel splitting in Er<sup>3+</sup> ions near the first biological window in the PbZr<sub>0.53</sub>Ti<sub>0.47</sub>O<sub>3</sub>:Er<sup>3+</sup>/Yb<sup>3+</sup> phosphor
Prasenjit Prasad Sukul, Yadvendra Singh, H.C. Swart
Abstract
NIR optical thermometry across a broad temperature range (12–673 K) was explored using FWHM and FIR as sensing parameters. Stark splitting in Er 3+ ions was analyzed through parametric modelling and Gaussian distribution to deconvolute NIR emissions.
Topics & Concepts
PhosphorIonInfraredMaterials scienceOptoelectronicsWindow (computing)OpticsNear-infrared spectroscopyChemistryPhysicsComputer scienceOrganic chemistryOperating systemLuminescence Properties of Advanced MaterialsAtomic and Subatomic Physics ResearchPerovskite Materials and Applications