Fig. 5: Mechanical properties and morphology of PEA-TFMS.
From: Mechanically deformable organic ferroelectric crystal with plasticity optimized by fluorination
a Pictures of progressive bending of PEA-TFMS caused by external forces. b Morphology and surface texture of PEA-TFMS crystal’s side surface (100) visualized by SEM. SEM: scanning electron microscope. c, d Morphology and surface texture of PEA-TFMS crystal’s side surface (100) on straight section (b) and bent section (c), respectively. e AFM measurement on the straight section of PEA-TFMS crystal’s side surface (100). AFM Atomic force microscope. f, g AFM images of the straight section of PEA-TFMS crystal’s side surface (100). h AFM measurement on the bent section of PEA-TFMS crystal’s side surface (100). i, j AFM images of the bent section of PEA-TFMS crystal’s side surface (100). k Load-displacement curves of PEA-TFMS and PEA-MS. l Comparison of Young’s modulus (E) and hardness (H) between PEA-TFMS and several well-known ferroelectrics32,49,50,60. TGS triglycine sulfate. m Comparison of P-E hysteresis loops of unbent and bent PEA-TFMS crystal.
