The First Synthesis of Pb_1-xMn_xSe Nanocrystals

In this work, Mn-doped PbSe nanocrystals (NCs) have been, for the first time, prepared through a high-temperature organic solution approach. To ensure that all the Mn²⁺ ions are indeed incorporated into the NCs and not only physically presented at the surface, Mn−Se prebonded precursor was selected, and a ligand-exchange process was also conducted before and after the synthesis, respectively. Various analyses including EDS, ICP, XRD, SQUID, and EPR confirm that the Mn²⁺ ions have been successfully doped into PbSe NCs.