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The piezoelectric effect in zincblende and wurtzite nanowires based on the full piezoelectric tensor following the continuum model has been studied analytically. Theoretical results present comparisons between piezoelectric potentials generated in wurtzite and zincblende nanowires which will serve as a guide for the proper design of future nanostructures in order to achieve maximum piezo-energy.
We have investigated the effect of piezoelectric charges on the surface depletion region of ZnO NWs. By considering an inner region with a non-negligible density of free carriers and a depleted region at surface of the ZnO NWs and by solving the Poisson equation in the depleted region, the surface depletion width is derived. Thus, the effect of piezoelectric charges on the surface depletion region...
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