The role of sodium in stabilizing tin–lead (Sn–Pb) alloyed perovskite quantum dots
Junke Jiang, Feng Liu, Qing Shen, Shuxia Tao
Abstract
-terminated surface. As a result, the positive effect of Na vanishes with time, explaining the relatively short lifetime of the experimentally obtained high PLQYs. Our results indicate that engineering the surface termination of the QDs could be the next step in maintaining the favorable effect of Na doping for a high and stable PLQY of Sn-Pb QDs.
Topics & Concepts
Perovskite (structure)TinQuantum dotDopingLead (geology)Materials scienceSodiumNanotechnologyChemistryMetallurgyOptoelectronicsCrystallographyGeomorphologyGeologyPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films