Extended Data Fig. 3: P-E loops under different irradiation doses at 200 MV m-1 and comparison of energy storage at a low field of 100 MV m−1.
From: Enhanced energy storage in high-entropy ferroelectric polymers
a, x = 0 Mrad. b, x = 5 Mrad. c, x = 10 Mrad. d, x = 20 Mrad. e, x = 40 Mrad. f, Pristine P(VDF-TrFE-CTFE) 65.4/26.2/8.4 mol%. a-e correspond to the data obtained in P(VDF-TrFE-CTFE) 65/31/4 mol%. g, Unipolar P-E loops. h, Comparison of efficiency between the high-entropy and pristine terpolymers. i, Comparison of discharged energy density Ud between the high-entropy and pristine terpolymers. The high-field results in BOPP are also added in h and i. The dashed boxes in h and i indicate the results in ferroelectric polymers-based materials. CTFE7 represents the terpolymer P(VDF-TrFE-CTFE) 65.6/26.7/7.7 mol% from ref. 28. The red arrows describe the marked increase in both η and Ud enabled by high-entropy design.
