Lattice doping of lanthanide ions in Cs2ZrCl6 nanocrystals enabling phase transition and tunable photoluminescence

ions increases from 0.77% to 54% upon the phase transition (under 276 nm excitation). Our study provides new insights into the effects of dopants on the structure of perovskite nanocrystals and is beneficial to the design of a variety of light-emitting materials for optoelectronic applications.