Temperature is an essential parameter that plays a crucial role in the dynamics of natural and artificial systems. Although several reading methods have been developed over time, current technologies have increased the demand to develop new methods with high accuracy down to micro -and nano-scales. In this respect, luminescent thermometers have emerged in the studies as promising tools showing high sensitivities and spatial resolution, in addition to short response times. In particular, their non-invasive nature could be of interest in the context of biological imaging. Among this family, Lanthanide(III)-based luminescent thermometers take a great interest due to their unique photo-physical properties.                                                                                  In this manuscript, we will present the design of ratiometric and luminescence lifetime thermometers, based on Ln emitting centers. Good performances were achieved by following the variation of the emission of mixtures of Eu(III) and Tb(III) complexes. The transfers of energy in between both emitting species were modulated, thanks to the modification of the ligand and its impact on the excited states involved in the process and the morphology of the prepared materials. These materials show a straightforward processability and promising performances as temperature sensors. In particular, their good sensitivities in the physiological range makes them appealing candidates as precursor for future biological probes.