Structural inhomogeneity and piezoelectric enhancement in ZnO nanobelts
نویسندگان
چکیده
In this work, piezoelectricity of individual ZnO nanobelts grown along the [0 1 ı̄ 0] direction is studied using piezoresponse force microscopy (PFM). It is found that the effective piezoelectric coefficient of these NBs, deff 33 , is increasing from 2.7 pm/V at 30 kHz to 44 pm/V at 150 kHz. The results were explained by the Debye model, where structural inhomogeneity in our NBs was shown to be responsible for piezoelectric enhancement.
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