The dual band and white-light emission from piperazine halide perovskites

We used 1,4-diazabicyclo[2.2.2]octane to prepare the perovskite (C 6 H 12 N 2 H 2 ) 4 Pb 5 Br 18 ((C 6 H 12 N 2 H 2 ) 4 + = DABCO) and (DABCO)Sn 2 Cl 6 , to demonstrate their dual band and white-light emission properties.