Conductivity Type Switching in Bi-Added Co4Sb12-Based Skutterudites via Compositing Effect
Krushna Kumari Raut, Cédric Bourgès, Andrei Novitskii, Takao Mori
Unfilled Co 4 Sb 12 skutterudites typically exhibit n -type conductivity at room temperature due to native donor-type defects associated with off-stoichiometric compositions arising from Sb loss during high-temperature synthesis. Achieving stable p -type conductivity in the absence of rare-earth fillers or …
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