Ratiometric mixed Eu–Tb metal–organic framework as a new cryogenic luminescent thermometer

Abstract

The first example of a dual-emitting luminescent thermometer based on lanthanide isophthalate exhibiting a maximum relative sensitivity of 3.26% K⁻¹, a temperature uncertainty of 0.07 K at 35.5 K, and a repeatability >99.9% between 12 and 230 K.