ArticleSmall science2025
Improved Charge Carrier Transport Across Grain Boundaries in N-type PbSe by Dopant Segregation.
Article in Small science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
3 citing papers in PubMed.
- Structure and composition of grain boundaries and their impact on functional properties of energy materials.MRS bulletin · 2026Review
- Advances in Thermoelectric Materials Research.Small science · 2025Article
- Atom Probe Tomography: a Local Probe for Chemical Bonds in Solids.Advanced materials (Deerfield Beach, Fla.) · 2024Review
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Doping is an important and routine method to tune the properties of semiconductors. Dopants accumulated at grain boundaries (GBs) can exert a profound influence on microstructures and transport properties of heat and charge. To unravel the effect of dopant accumulation at GBs on the scattering of electrons, individual high-angle GBs in three PbSe samples doped with different amounts of Cu using a home-designed correlative characterization platform combining electron backscatter diffraction, microcircuit transport property measurements, and atom probe tomography are studied. The findings reveal that the segregation of Cu dopants to GBs reduces the GB potential barrier height. Once the GB phase reaches an equilibrium with saturated Cu, the extra Cu dopants distribute homogeneously inside the grains, compensating for vacancies and improving the electrical conductivity of the PbSe grains. The results correlate the Cu distribution at GBs and grains with local electrical properties, enlightening strategies for manipulating advanced functional materials by GB segregation engineering.
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Registered trials
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