Boosting green emission in Mn(ii)-doped Cs3ZnCl5 by introducing an energy transfer mediator

An alcohothermal method is introduced for synthesizing doped Cs 3 ZnCl 5 phosphors. The photoluminescence quantum yield of Cs 3 ZnCl 5 :Mn 2+ was enhanced from 51.6% to 71.1% by codoping with Cu + , which acts as an effective energy transfer mediator.