Abstract: A system includes a vacuum chamber, and a substrate in the vacuum chamber includes a target surface. At least one effusion cell is in the vacuum chamber, wherein the effusion cell contains a solid metal-organic precursor compound with a vapor pressure of less than about 10?2 Torr at a temperature of about 25° C. to about 300° C. The effusion cell is configured to sublime the solid metal-organic precursor compound at a sublimation temperature greater than about 0° C. and less than about 200° C. such that a stream of metal particles from the solid metal-organic precursor compound emanate from the effusion cell are directed toward to the target surface of the substrate to form a coating thereon.

Abstract: An example power generation system includes two capacitors and an electric load. A first capacitor includes a dielectric material that is configured to transition from a ferroelectric phase to a paraelectric or antiferroelectric phase when heated above a first transition temperature, and to transition from the paraelectric or antiferroelectric phase to the ferroelectric phase when cooled below a second transition temperature. A second capacitor is electrically coupled in parallel to the first capacitor. The electric load is electrically coupled to the first capacitor and the second capacitor. The system is configured to cyclically cool the dielectric material below the second transition temperature to draw a charge from the second capacitor to the first capacitors through the electric load, and heat the dielectric material beyond the first transition temperature to draw a charge from the first capacitor to the second capacitors through the electric load.

Abstract: In some examples, the disclosure describes a film including a rare-earth element-doped metal stannate exhibiting an electrical conductivity of at least about 104 S/cm at room temperature, where the metal includes at least one of barium, strontium, calcium, or zinc.

Abstract: In some examples, the disclosure describes a film including a rare-earth element-doped metal stannate exhibiting an electrical conductivity of at least about 104 S/cm at room temperature, where the metal includes at least one of barium, strontium, calcium, or zinc.

Abstract: An example power generation system includes two capacitors and an electric load. A first capacitor includes a dielectric material that is configured to transition from a ferroelectric phase to a paraelectric or antiferroelectric phase when heated above a first transition temperature, and to transition from the paraelectric or antiferroelectric phase to the ferroelectric phase when cooled below a second transition temperature. A second capacitor is electrically coupled in parallel to the first capacitor. The electric load is electrically coupled to the first capacitor and the second capacitor. The system is configured to cyclically cool the dielectric material below the second transition temperature to draw a charge from the second capacitor to the first capacitors through the electric load, and heat the dielectric material beyond the first transition temperature to draw a charge from the first capacitor to the second capacitors through the electric load.