Of molybdenum oxide made the first two-dimensional piezoelectric-elektret

Physics for the first time received two-dimensional molybdenum oxide, which demonstrates piezoelectric properties. Usually the piezoelectric materials are non-centrosymmetrical crystals, but molybdenum oxide is not. In a new material, scientists were able to artificially achieve piezoelectric properties by the addition of structural defects, with the result that he became an electret with a long shelf life. Article published in the journal Advanced Materials.

There is a class of materials, called piezoelectric materials. As a rule, crystals, elements of an atomic lattice which is not symmetric (chiral).

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