Lead-free MnII-based red-emitting hybrid halide (CH6N3)2MnCl4 toward high performance warm WLEDs

A blue-light excited red-emitting Mn²⁺-based hybrid halide (CH₆N₃)₂MnCl₄ with a high PLQY of 55.9% was obtained. Using the halide, a high performance warm WLED was fabricated, indicating its potential as a red-emitting component for WLED applications.