Amorphous Formability and Temperature-Sensitive Luminescence of Lanthanide Coordination Glasses
Glass-transition properties and temperature-sensitive luminescence of lanthanide (Ln(III)) coordination compounds are demonstrated. The amorphous formability was systematically provided by introducing bent-angled phosphine oxide ligands based on thienyl, naphthyl, and phenyl cores with ethynyl groups. Glass transition points were clearly identified for all Ln(III) coordination compounds from 65 to 87 °C. The Tb(III)/Eu(III) mixed coordination glass also exhibited temperature-dependent emission profiles from green, yellow, orange, to red in the range of 100–400 K.