Ideal Strength and Deformation Mechanism in High-Efficiency Thermoelectric SnSe
نویسندگان
چکیده
منابع مشابه
Structural changes in thermoelectric SnSe at high pressures.
The crystal structure of the thermoelectric material tin selenide has been investigated with angle-dispersive synchrotron x-ray powder diffraction under hydrostatic pressure up to 27 GPa. With increasing pressure, a continuous evolution of the crystal structure from the GeS type to the higher-symmetry TlI type was observed, with a critical pressure of 10.5(3) GPa. The orthorhombic high-pressure...
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Motivated by the recent study of inspiring thermoelectric properties in bulk SnSe [Zhao et al., Nature, 2014, 508, 373] and the experimental synthesis of SnSe sheets [Chen et al., J. Am. Chem. Soc., 2013, 135, 1213], we have carried out systematic calculations for a single-layered SnSe sheet focusing on its stability, electronic structure and thermoelectric properties by using density functiona...
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DOI: 10.1002/aenm.201602328 precursors,[4] doping proves challenging for solution-synthesized MC nanostructures.[5] Recently, post-synthesis halide treatment of nanocrystals in solution has been developed which involves switching halogens for long chain surfactant molecules absorbed on the surface.[2,6] In fact, sorption of halogens can be realized as part of a one-pot synthesis using metal hal...
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LaCl₃ doped polycrystalline SnSe was synthesized by combining mechanical alloying (MA) process with spark plasma sintering (SPS). It is found that the electrical conductivity is enhanced after doping due to the increased carrier concentration and carrier mobility, resulting in optimization of the power factor at 750 K combing with a large Seebeck coefficient over 300 Μvk-1. Meanwhile, all the s...
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ژورنال
عنوان ژورنال: Chemistry of Materials
سال: 2017
ISSN: 0897-4756,1520-5002
DOI: 10.1021/acs.chemmater.7b00279