Representative AFM images of as-electrospun TGS fibers. (a) AFM topography; (b) OP PFM image; and (c) IP PFM image.
Local longitudinal piezoresponse hysteresis loop measured on a TGS nanofiber via PFM. Insets represent PFM images obtained after the poling at ±30 V.
PFM image (a) and cross-section of the piezoresponse across the TGS fiber (b); (c) schematic of the suggested cross-section of the TGS-PEO fiber with embedded nanocrystals. represents the effective thickness of TGS volume fraction contributed to the effective piezoresponse.
PFM image of an individual TGS fibers (a) and the axial cross-sections of the PFM signal representing the TGS/PEO distribution along the fiber axis (b).
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