Fig. 1: Molecular thermal dynamics and properties of nanoconfined PEI polymer wetted by Al2O3.
From: High-temperature capacitive energy storage in polymer nanocomposites through nanoconfinement
a The model constructed for molecular dynamic simulations featuring PEI polymer wetted by Al2O3 layers (left), and the corresponding diffusion coefficient (D) of PEI polymer chains at different positions from the bottom to top Al2O3 surfaces. b The diffusion coefficient of PEI polymer chains as a function of temperature. c Variation of Tg for confined PEI with different film thicknesses, the thickness of the Al2O3 layers is fixed at 28 nm. The error bars (±1 °C) represent the inherent error due to the fitting of the data required to obtain Tg. d, e Variations of d Young’s modulus and e resistivity for PEI-Al2O3 nanolaminates with different PEI thicknesses at various temperatures, the thickness of the Al2O3 layers is fixed at 28 nm. f Dependency of breakdown strength on PEI film thickness for PEI-Al2O3 nanolaminates at various temperatures, the thickness of the Al2O3 layers is fixed at 28 nm.
