Figure 3
(a) XRD analysis of ACF specimen. (b) Changes in atomic pair distribution functions (PDFs) under 100–200 kV irradiation at a rate of 3 nA/m2. (c) Change rates of bonding distance as functions of applied voltage. (d) AFM image of the ACF surface. (e) Histogram of the potential distribution at + 40 V. Inset in (a) SAED pattern, (d) three-dimensional AFM image, (e) electrostatic potential distributions for ACF surface when the applied voltage changed from − 20 V to + 40 V.
