Photophysical properties of tetrabutylammonium metal chlorides with different inorganic frameworks

Chem Commun (Camb). 2023 Mar 23;59(25):3763-3766. doi: 10.1039/d2cc06988a.

Abstract

The luminescence of single crystals of (TBA)PbCl3, (TBA)2Sb2Cl8, (TBA)3Bi2Cl9 and (TBA)SnCl5·2EtOH (TBA = tetrabutylammonium, EtOH = Ethanol) synthsized were assigned distinctively to the centres of self-trapped excitons (STEs), TBA+, TBA+ and co-emission of STEs and TBA+. This work demonstrates that organic cations without benzene or aromatic rings can also be used as the sole luminescence centres for metal halides.