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Position: Home > issue > November 08, 2022 Volume 3, Issue 6
Achieving metal-like malleability and ductility in Ag2Te1-xSx inorganic thermoelectric semiconductors with high mobility
Category:   Report   Download:  PDF  Figure  Endnote
Author: Huiping Hu, Yuechu Wang, Chenguang Fu, Xinbing Zhao, Tiejun Zhu

4b.jpg

Graphical abstract


Inorganic semiconductor Ag2Te1-xSx has been recently found to exhibit unexpected plastic deformation with compressive strain up to 30%. However, the origin of the abnormal plasticity and how to simultaneously achieve superb ductility and high mobility are still elusive. Here, we demonstrate that crystalline/amorphous Ag2Te1-xSx (x = 0.3, 0.4, and 0.5) composites can exhibit excellent compressive strain up to 70% if the monoclinic Ag2Te phase, which commonly exists in the matrix, is eliminated. Significantly, an ultra-high tensile elongation reaching 107.3% was found in Ag2Te0.7S0.3, which is the highest one yet reported in the system and even surpasses those achieved in some metals and high-entropy alloys.





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