Fig. 4: Dielectric and optical performance of the films. | Nature Communications

Fig. 4: Dielectric and optical performance of the films.

From: Flexible high-entropy functional ceramics

Fig. 4: Dielectric and optical performance of the films.

a Room-temperature permittivity of the high-entropy dielectric capacitor (BiTO-1.6R) as a function of bending cycles under tensile stress (frequency: 100 kHz and 1000 kHz). Bending radius: 3 mm. Inset: photograph of a flexible capacitor. b Temperature-dependent permittivity and loss tangent of the high-entropy film. c Leakage current densities of the dielectric films as a function of applied electric fields. d Transmittance spectra of the films in the UV-visible light region. Inset: Digital photographs of BiTO-0.9R (left, near transparent) and BiTO-1.6R (right, transparent) films outlined by yellow frames.

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