Abstract
In the recent era of green and sustainable energy, the demand for effective and efficient energy harvesting has dramatically increased. Piezoelectric energy harvesting, which converts mechanical energy into electrical energy, is considered a viable strategy to achieve this goal. Janus-type nanomaterial, a noncentrosymmetric material with different elemental species in the upper and lower atomic layers, has gained interest due to its exotic properties compared to conventional bulk and symmetric materials. In this work, we systematically design and investigate a new class of Janus nanomaterials with enhanced intrinsic polarization via the successive ionic exchange method. Multiple layers of stability standards, including both thermodynamic and dynamic stabilities, are employed in the high-throughput screening procedure of novel Janus-type nanomaterials. The newly proposed Janus-type nanomaterials exhibit more than 10 times higher piezoelectric response compared to that of reported low-dimensional materials and even comparable to that of bulk materials.
Published Version
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