The use of energy looping between Tm<sup>3+</sup> and Er<sup>3+</sup> ions to obtain an intense upconversion under the 1208 nm radiation and its use in temperature sensing
Tomasz Grzyb, Inocencio R. Martín, Radian Popescu
Abstract
Core@shell nanoparticles doped with Tm 3+ and Er 3+ ions exhibit intense temperature-dependent photon upconversion when subjected to 1208 nm laser excitation. The mechanism behind this observed emission is elucidated, unveiling its intricate nature.
Topics & Concepts
Photon upconversionIonExcited stateMaterials scienceExcitationRadiationAbsorption (acoustics)WavelengthLaserOptoelectronicsAnalytical Chemistry (journal)LuminescenceAtomic physicsChemistryOpticsPhysicsQuantum mechanicsOrganic chemistryComposite materialChromatographyLuminescence Properties of Advanced MaterialsLuminescence and Fluorescent MaterialsPerovskite Materials and Applications