Abstracts

The emergence of luminescent nanothermometry during the last decade opened the possibility ofmeasuring thermal flows at spatial scales below 1 μm, unreachable by conventional electrical methods.Diverse phosphors capable of providing remote detection through their light emission properties havebeen examined, e.g., polymers, DNA or protein conjugated systems, organic dyes, quantum dots, andtrivalent lanthanide (Ln³⁺) ions incorporated in organic-inorganic hybrids, multifunctional heater-thermometernanoplatforms, upconverting, downconverting and downshifting nanoparticles.In recent years, luminescence nanothermometry has entered a more mature stage. Although new classesof thermographic phosphors continue to be reported (e.g., covalent organic frameworks and single-ionmagnets) we are perceiving a gradual shift in the emphasis of the technique. The research efforts are nowfocused on establishing comprehensive theoretical backgrounds and standardization procedures (both indata acquisition and processing and in measurement methodologies), discussing the reliability,repeatability, and reproducibility of the technique, and developing new applications.The lecture will give a general perspective of the work done on luminescence nanothermometry since theexplosion of the field one decade ago, emphasizing the potential of the technology with recent examplesinvolving upconverting nanoparticles for advancing thermal imaging.