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Materials with low intrinsic lattice thermal conductivity are crucial in the pursuit of high‐performance thermoelectric (TE) materials. Here, the TE properties of PbBi2Te4‐xSex (0 ≤ x ≤ 0.6) samples are systematically investigated for the first time. Doping with Se in PbBi2Te4 can simultaneously reduce carrier concentration and increase carrier mobility. The Seebeck coefficient is significantly increased...
The commercialization of lithium–sulfur (Li–S) battery is seriously hindered by the shuttle behavior of lithium (Li) polysulfide, slow conversion kinetics, and Li dendrite growth. Herein, a novel hierarchical p‐type iron nitride and n‐type vanadium nitride (p‐Fe2N/n‐VN) heterostructure with optimal electronic structure, confined in vesicle‐like N‐doped nanofibers (p‐Fe2N/n‐VN⊂PNCF), is meticulously...