Table 1 Surface energy of P(VDF-TrFE-CTFE) films.

From: Achieving high mobility, low-voltage operating organic field-effect transistor nonvolatile memory by an ultraviolet-ozone treating ferroelectric terpolymer

UVO treating time (min)

Contact angle (o)

γspmJ m−2 (a)

γsdmJ m−2 (a)

γsmJ m−2 (b)

Water

Toluene

0

94.2

4.0

1.7

27.4

29.1

15

76.0

3.6

10.1

23.3

33.4

30

70.0

3.2

14.2

22.1

36.3

60

62.0

2.6

20.5

20.6

41.1

  1. (a)γsp and γsd are the polar and dispersion components of the surface energy, respetively. (b) γs is the surface energy of P(VDF-TrFE-CTFE) films. γs = γsp + γsd.