Lead-based crystal luminophores: Tuning emissive crystals and application for recording high temperature history with ratiometric and colorimetric signals

Seven lead-complexes were synthesized and their structure-related luminescent properties and thermal stabilities were discussed in this work. Based on these studies, 6 was selected and optimized for recording the thermal history, which could transit into 5 with obvious emissive color change in the range of 230-270 °C.106