Local piezoelectric properties of Di-Leucine dipeptides nanotubes
Abstract
Di-Leucine (LL) peptide nanotubes (PNTs) were grown. The local piezoelectric properties of LL PNTs were measured using atomic force microscopy. Using piezoresponse force microscopy the strong piezoelectric properties with d15 ~ 3.2 pm/V was found. The magnitude and distribution of the piezo response signal were analysed depending on the orientation of the tubes. Features of the charge distribution depending on the microstructure of LL PNTs were discovered by Kelvin Probe Force Microscopy.
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