Fig. 2: Structures and electric properties of multilayered nanolaminates.
From: High-temperature capacitive energy storage in polymer nanocomposites through nanoconfinement
a Cross-section SEM images of nanolaminates with varying layers and interlayer PEI thickness of 10 nm. The pink region represents Al2O3, and the blue region represents PEI. The scale bar is 50 nm for all. b Leakage current densities of nanolaminates with varying layers as a function of an electric field at 200 °C. c KPFM maps of the normalized contact potential difference (CPD) of nanolaminates with varying layers. From top to bottom, ~30 s, ~1 min, ~2 min, ~3 min, ~4 min, ~5 min, ~7 min, ~9 min, ~11 min after applying a 20 V voltage at the surface of the samples. The scale bar is 1 μm. d Simulated evolution of volume fraction of breakdown phase for different multilayered nanolaminates. e Failure probability of breakdown strength deduced from Weibull distribution for nanolaminates with varying layers at 25, 150, and 200 °C, respectively.
