Wittichenite Cu3BiS3 is a promising thermoelectric material with intrinsically low thermal conductivity owing to its complex crystal structure and strong lattice anharmonicity; however, its thermoelectric performance is limited by low carrier concentration and insufficient electrical conductivity. In this study, Cu3Bi1...
Materials that can switch between low and high thermal conductivity states enable on-demand management of temperature and heat flow, which will advance the application of solid-state refrigeration, energy conversion, and thermal circuits. Here, we report a large thermal conductivity on/off ratio of ∼1.49, accompanied b...
Summary Thermoelectric thin films based on bismuth telluride (Bi2Te3) are widely used for room temperature energy harvesting, but improving electrical, thermal, and mechanical properties simultaneously remains challenging. In this study, Bi2Te3-carbon black nanoparticle nanocomposite films were synthesized by electrode...
K. F. Samat, M. A. Alias, Muhammad Aliff Ikhwan Che Azman et al.· iScience· 0 citations
La1-xSrxMnO3-δ (x = 0, 0.15, 0.30 and 0.50) perovskite powders were synthesized by a modified Pechini sol-gel method. Differential thermal analysis revealed that heat treatment at approximately 800 °C is required for complete formation of the perovskite phase. X-ray diffraction analysis showed that the as-synthesized p...
P. Kolkovskyi, M. Kolkovskyi, B. Rachiy et al.· Physics and Chemistry of Sol...· 0 citations
The substitution-type compound Fe1-xCoxTe2 (x = 0-1) was successfully synthesized via solid-state reaction, and the variation patterns of its electrical properties with varying preparation temperatures and Co substitution levels (x) were investigated. The study demonstrates that single-phase Fe1-xCoxTe2 compounds can b...
Da-You She, Xiao-Cong Zhang, Chao-Mei Li et al.· Journal of Physics, Conferen...· 0 citations
Materials exhibiting a negative dielectric constant, commonly observed in metals, have recently attracted significant interest due to their unusual electromagnetic properties. Although this behaviour has been reported in composites and meta-materials, studies on single-phase perovskite oxides, particularly at high temp...
