An electrocaloric module includes an electrocaloric element that includes an electrocaloric film, a first electrode on a first surface of the electrocaloric film, and a second electrode on a second surface of the electrocaloric film. A support is attached along an edge portion of the electrocaloric film, leaving a central portion of the electrocaloric film unsupported film. At least one of the first and second electrodes includes a patterned disposition of conductive material on the film surface. The electrocaloric module also includes a first thermal connection configured to connect to a first thermal flow path between the electrocaloric element and a heat sink, a second thermal connection configured to connect to a second thermal flow path between the electrocaloric element and a heat source, and a power connection connected to the first and second electrodes and configured to connect to a power source.

An antibacterial yarn that includes a core yarn including a functional polymer that generates a charge by external energy and a first sheath yarn higher in hygroscopicity than the core yarn, the first sheath yarn covering at least a part of a periphery of the core yarn across an axial direction of the core yarn.

The invention relates to a microsystem (1) comprising a substrate (12), a bottom electrode (3) arranged on the substrate (12), a ferroelectric layer (4) arranged on the bottom electrode (3), a top electrode (5) arranged on the ferroelectric layer (4) and an isolation layer (6) that is electrically isolating, that is arranged on the top electrode (5), that extends from the top electrode (5) to the substrate (12) so that the isolation layer (6) covers the bottom electrode (3), the ferroelectric layer (4) and the substrate (12) in a region around the complete circumference of the bottom electrode (3), and the isolation layer (6) has the shape of a ring that confines in its centre a through hole (11) that is arranged in the region of the top electrode (5).

The invention relates to a microsystem (1) comprising a substrate (12), a bottom electrode (3) arranged on the substrate (12), a ferroelectric layer (4) arranged on the bottom electrode (3), a top electrode (5) arranged on the ferroelectric layer (4) and an isolation layer (6) that is electrically isolating, that is arranged on the top electrode (5), that extends from the top electrode (5) to the substrate (12) so that the isolation layer (6) covers the bottom electrode (3), the ferroelectric layer (4) and the substrate (12) in a region around the complete circumference of the bottom electrode (3), and the isolation layer (6) has the shape of a ring that confines in its centre a through hole (11) that is arranged in the region of the top electrode (5).

The present invention belongs to the technical field of energy conversion devices, which provides an rGO-PEI/PVDF pyroelectric thin film, and the method for preparing the film, as well as a self-energized bracelet produced based on such film, which utilizes the reduced graphite oxide after modified by polyethyleneimine (PEI) (rGO-PEI) as photothermal conversion material, and the silver-plated polarized polyvinylidene fluoride (PVDF) film as pyroelectric conversion material. The rGO-PEI photothermal material is fixed to the surface of the PVDF through a transparent film, and prepare the self-energized bracelet based on it. The obtained bracelet has an output power of up to 21.3 mW/m2, and does not require additional mechanical devices to control the temperature during operation, wherein, the thermoelectric conversion, rectification, storage and application are realized through temperature fluctuation produced by absorbing sunlight during doing outdoor sports, utilizing temperature difference of air flow, and sweeping gesture, etc.

One object of the present invention is to provide a bolometer having low resistance.

The present invention relates to a bolometer including two electrodes and a bolometer film lying between the two electrodes to connect the two electrodes, wherein the bolometer film includes semiconducting carbon nanotubes in a proportion of 90% by mass or more to the total amount of carbon nanotubes and includes p-type semiconducting carbon nanotubes, and one or both of the two electrodes include(s) a monometal or alloy having lower work function than the p-type semiconducting carbon nanotubes at least in a part of the electrode.

A method and apparatus for reducing as-deposited and metastable defects relative to amorphous silicon (a-Si) thin films, its alloys and devices fabricated therefrom that include heating an earth shield positioned around a cathode in a parallel plate plasma chemical vapor deposition chamber to control a temperature of a showerhead in the deposition chamber in the range of 350° C. to 600° C. An anode in the deposition chamber is cooled to maintain a temperature in the range of 50° C. to 450° C. at the substrate that is positioned at the anode. In the apparatus, a heater is embedded within the earth shield and a cooling system is embedded within the anode.

A method of making an electrocaloric element includes forming conductive layers on opposing surfaces of a film comprising an electrocaloric material to form an electrocaloric element, wherein the forming of the conductive layers includes one or more of: vapor deposition of the conductive layers under reduced pressure for a duration of time, wherein the duration of time under reduced pressure is less than 240 minutes; vapor deposition of the conductive layers under reduced pressure for a duration of time, wherein the duration of time of exposure to conductive material deposition is less than 240 minutes; vapor deposition of the conductive layers under reduced pressure, wherein the reduced pressure is 10.sup.−8 torr to 500 torr; or maintaining the film at a temperature of less than or equal to 200° C. during forming of the conductive layers.

Various embodiments disclosed relate to unsaturated polymers that exhibit electrocaloric properties. The polymers can be useful as heat transfer materials in heating and cooling applications.

An antibacterial electric charge generation yarn meets requirements (a) to (e) mentioned below simultaneously and suppresses proliferation of bacteria by electric charge generated upon deformation of the yarn: (a) a main component of the yarn is polylactic acid; (b) the yarn is twisted; (c) the yarn has a double torque of 50 T/50 cm or less; (d) the yarn has a single fiber fineness of 0.05 to 5 dtex; and (e) the number of filaments in the yarn is 10 to 400.