A three-dimensional cuprous lead bromide framework with highly efficient and stable thermochromic luminescence properties

Herein, by using a structural design strategy of incorporating hetrometallic halide blocks, we prepared the first 3D bimetallic halide of [H 2 DABCO] 2 Cu 6 PbBr 12 with new topological network based on two types of 6-connected nodes. Remarkably, this 3D framework displays highly efficient thermochromic luminescence from broadband yellow to green light emissions with remarkable stability. The first 3D bimetallic halide of [H 2 DABCO] 2 Cu 6 PbBr 12 based on two types of 6-connected nodes displays highly efficient thermochromic luminescence from broadband yellow to green light emissions.