Measuring Piezoelectric Output—Fact or Friction?

The measured maximum voltage of approximately ±80 V that can be expected for an applied force of 10 N for a sample thickness of 100 µm, which is declared on page 6 in the published article, is hereby corrected:The corrected section of the text should read: "From Equations 1a-d, we can determine that for an applied force of 10 N (an approximate force of a controlled finger tap), [42] the maximum measured voltage that a sample would expect to have is approximately ±1 V for a 100 µm sample thickness (with a 4 cm 2 area of compression, significantly higher than the area of a fingertip)."The context of this change is the discussion of erroneous attribution of triboelectric voltage as piezoelectric voltage.This value is the calculation of the maximum possible voltage output from a standard piezoelectric polymer film by a finger tap.coRRection