Abstract: Disclosed are a manganese-doped cobaltosic tetroxide, and a preparation method and application thereof, belonging to the field of battery materials. The preparation method of the manganese-doped cobaltosic tetroxide of the disclosure dopes a manganese element into cobalt carbonate with a specific process and matched with a composite surfactant, which can obtain manganese-doped cobaltosic tetroxide particle products with uniform particle size, dispersion and fineness through high-temperature sintering, a proportion of low-valence manganese in the doped manganese is high, and a crystal form of the products obtained by sintering is complete. The preparation method is simple in operation and can realize industrial large-scale production. The manganese-doped cobaltosic tetroxide prepared by the preparation method and the application thereof are also disclosed.

Abstract: An electric field generating device includes n electrodes, an electrical signal generator and a control signal generator. The control signal generator is electrically connected to the electrical signal generator, and configured to control the electrical signal generator to apply a first electrical signal to m electrodes of the n electrodes, and apply a second electrical signal to at least two electrodes of n-m electrodes, to generate an electric field between the electrodes with the first electrical signal and the electrodes with the second electrical signal; where n is an integer not less than 3, 1?m<n, m is an integer, and a voltage of the second electrical signal is less than a voltage of the first electrical signal.

Abstract: Diels-Alder crosslinkable dendritic nonlinear optical chromophore compounds, films and crosslinked polymer composites formed from the chromophore compounds, methods for making and using the chromophore compounds, films, and crosslinked polymer composites, and electro-optic devices that include films and crosslinked polymer composites formed from the chromophore compounds.

Abstract: Alkoxy-substituted phenyltetraene nonlinear optically active compounds, films and devices that include the compounds, and methods for making and using the compounds, films, and devices.

Abstract: Diels-Alder crosslinkable dendritic nonlinear optical chromophore compounds, films and crosslinked polymer composites formed from the chromophore compounds, methods for making and using the chromophore compounds, films, and crosslinked polymer composites, and electro-optic devices that include films and crosslinked polymer composites formed from the chromophore compounds.

Abstract: Diels-Alder crosslinkable dendritic nonlinear optical chromophore compounds, films and crosslinked polymer composites formed from the chromophore compounds, methods for making and using the chromophore compounds, films, and crosslinked polymer composites, and electro-optic devices that include films and crosslinked polymer composites formed from the chromophore compounds.

Abstract: Diels-Alder crosslinkable dendritic nonlinear optical chromophore compounds, films and crosslinked polymer composites formed from the chromophore compounds, methods for making and using the chromophore compounds, films, and crosslinked polymer composites, and electro-optic devices that include films and crosslinked polymer composites formed from the chromophore compounds.