Lead-free Mn II -based red-emitting hybrid halide (CH 6 N 3 ) 2 MnCl 4 toward high performance warm WLEDs

A blue-light excited red-emitting Mn 2+ -based hybrid halide (CH 6 N 3 ) 2 MnCl 4 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.