Simultaneous 100% PLQY of Mn 2+ Emission and High Pb Substitution via Sr 2+ Doping in Mn-CsPbCl 3 Nanocrystals

Key Points

• This research investigates the effects of doping Mn2+ ions to enhance emission in cesium lead halide nanocrystals while mitigating lead toxicity.
• Doped cesium lead halide perovskite nanocrystals with varying concentrations of Mn2+ ions.
• Assessed photoluminescent quantum yield (PLQY) and lead substitution levels through systematic studies.
• Evaluated emission performance and quenching effects at high doping concentrations.
• Achieved 100% PLQY for Mn2+ emission under optimal doping conditions.
• Significant reduction in lead toxicity was observed with increased Sr2+ doping.
• Demonstrated a stable emission channel with minimized concentration quenching.