Temperature dependent transport properties of p-Pb1−xMnxSe films

Sun, Yun; Lin, Tie; Gao, Kuang-Hong; Hu, Z.; Wu, Honghui; Yang, Peng; Dai, Ning; Chu, Junhao

doi:10.1063/1.3478708

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…Several routes to synthesize Mn-doped PbS and PbSe nanostructures have been attempted, including solution synthesis, , molecular-beam epitaxy (MBE), and the fusion method in a glass matrix . One major difficulty of doping nanostructures is that the impurities tend to migrate to the surface by a self-purification process .…”

Section: Introductionmentioning

confidence: 99%

3-D Atomic-Scale Mapping of Manganese Dopants in Lead Sulfide Nanowires

Isheim

Kaszpurenko

et al. 2012

J. Phys. Chem. C

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Dopants in nanowires, whether intentional or unintentional, can ultimately control the material’s properties and, therefore, need to be understood on the atomic scale. We study vapor–liquid–solid grown manganese-doped lead sulfide nanowires by atom-probe tomography for the first time for lead salt materials. The three-dimensional chemical concentration maps at the atomic scale demonstrate a radial distribution profile of Mn ions, with a concentration of only 0.18 and 0.01 at. % for MnCl2 and Mn-acetate precursors, respectively. The ability to characterize these small concentrations of dopant atoms in Pb1–x Mn x S nanowires (x = 0.0036 and 0.0002), important for spintronic and thermoelectric devices, sets a platform for similar analyses for all nanostructures. First-principles calculations confirm that Mn atoms substitute for Pb in the PbS structure.

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