Enhancement of the photoluminescence efficiency of hybrid manganese halides through rational structural design

Abstract

Five new zero-dimensional hybrid manganese halides based on discrete [MnCl₄]²⁻ tetrahedrons were prepared and used as highly efficient green-light emitters. Through rational management of organic cations to tailor the Mn⋯Mn separation distances between neighboring [MnCl₄]²⁻ tetrahedrons, the photoluminescence quantum yield increased significantly from 7.98% to 81.11%.