Inserting an “atomic trap” for directional dopant migration in core/multi-shell quantum dots
Chun Chu, Elan Hofman, Chengpeng Gao, Shuya Li, Hanjie Lin, Walker MacSwain, John M. Franck, Robert W. Meulenberg, Arindam Chakraborty, Weiwei Zheng
Abstract
Directional Mn dopant migration (outward/inward) was achieved by inserting a CdZnS “atomic trap” with a small size mismatch with dopants in core/multi-shell QDs. A larger initial substitutional site allows for active trapping and dopant migration.
Topics & Concepts
DopantDopingMaterials scienceTrappingChemical physicsIonQuantum dotNanomaterialsNanocrystalNanotechnologyChemistryOptoelectronicsOrganic chemistryEcologyBiologyQuantum Dots Synthesis And PropertiesPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin Films