One-dimensional luminescent tetrabutylammonium lead halide perovskite synthesized with deep eutectic solvents

The mixture of TBAX powder and PbX 2 powder were heated and then naturally cooled to form DES-TBAX/PbX 2 for the first time, and 1D(TBA) 4 Pb 5 Br 14− x Cl x ·HBr(Cl)·2H 2 O and TBAPbI 3 perovskites were formed in the DES-TBAX/PbX 2 with good thermal stability.