摘要:
A method and device for the deposition of a film made of a semiconductive material having the formula Cu(In, Ga)X2, where X is S or Se, involves cathode sputter deposition of Cu, In, and Ga onto at least one surface of a substrate and simultaneous deposition of X in vapor phase onto the surface in a cathode chamber. A vapor form of X or its precursor is moved in a first laminar gas flow parallel to and in contact with the surface, and is simultaneously moved in a second laminar gas flow for inert gas parallel to the first laminar gas flow and located between the first laminar gas flow and a sputtering target(s), to confine the first laminar gas flow to the area around the substrate.
摘要:
Adjacent individual cells of a fuel cell are connected in series by intermediate connecting parts. Each connecting part is formed by a branch made from an electrically conducting material and extending the first current collector of a cell perpendicularly and connected to the second current collector of the adjacent cell. Each first current collector is moreover formed by an electrically insulating porous matrix incorporating said electrically conducting material, and the first current collectors of two adjacent cells are separated by an area of electrically insulating porous material, said electrically insulating porous material being identical to that forming the porous matrix of said first current collectors. Series connection between the individual cells of such a fuel cell is thereby easy and quick to implement.
摘要:
A micro fuel cell comprises at least a substrate provided with front and rear faces. The front face of the substrate supports a successive stacking of a first electrode, a substantially flat electrolytic membrane and a second electrode. The electrolytic membrane comprises at least one anchoring element salient substantially perpendicularly to a main plane of said membrane. The anchoring element is arranged in a complementary part of an anchoring recess formed in the substrate. The substrate can also comprise a plurality of microchannels, substantially perpendicular to the main plane of the membrane. The anchoring recess can then be formed by one of the microchannels whereas the other microchannels enable supply of the first electrode with reactive fluid. Such a micro fuel cell is able to operate when a pressure difference exists between the two sides of the stacking.
摘要:
A method of producing hydrogen comprises reacting a hydrogenated compound and water. The hydrogenated compound is in contact with, or may be mixed with an oily substance.
摘要:
A gas-generating apparatus includes a cartridge including a reservoir having a first reactant and a reaction chamber, and a receiver that can include a flow control device. The receiver is adapted to receive the cartridge and to transport the first reactant to the reaction chamber after connection with the cartridge. The flow control device is adapted to stop the transport of reactant when the pressure in the reaction chamber reaches a predetermined pressure.
摘要:
The fluid distribution device includes a first cavity at a first pressure and a second cavity at a second pressure lower than the first pressure. A partition separates the first cavity from the second cavity and a restricting valve is arranged between the first and second cavities. The partition includes a thermoelectric module having a hot side in thermal contact with the first cavity and a cold side in thermal contact with the second cavity.
摘要:
The present invention relates to a method for fabricating an interconnect stack of an integrated-circuit device. Air gaps are fabricated in the interconnect stack on one or more interconnect levels. The method comprises forming local etch vias (216, 218) between a lower etch-barrier layer (236) and an upper etch-barrier layer (211) on top of an upper-intermediate interconnect level (224). Lateral inhomogeneities of the dielectric constant on the upper-intermediate interconnect level are removed in comparison with prior-art devices. For in the finished interconnect stack local variations in the dielectric permittivity can only occur at the (former) etch vias, which are either visible by the presence of air cavities or hardly visible due to a later filling with the dielectric material of the next interlevel dielectric layer. The integrated-circuit device of the invention completely avoids a penetration of copper from the metal interconnect line sections into the adjacent interlevel or intermetal dielectric layers.
摘要:
Method for producing a nanostructure based on interconnected nanowires, nanostructure and use as thermoelectric converter The nanostructure comprises two arrays of nanowires made from respectively n-doped and p-doped semi-conducting material. The nanowires of the first array, for example of n type, are formed for example by VLS growth. A droplet of electrically conducting material that acted as catalyst during the growth step remains on the tip of each nanowire of the first array at the end of growth. A nanowire of the second array is then formed around each nanowire of the first array by covering a layer of electrically insulating material formed around each nanowire of the first array, and the associated droplet, with a layer of p-type semi-conducting material. A droplet thus automatically connects a nanowire of the first array with a single coaxial nanowire of the second array. This type of nanostructure can be used in particular to form a thermoelectric converter.
摘要:
A lithium storage battery comprises a stack formed by a current collector comprising recessed zones, an electrode and a plurality of expansion cavities for the material forming the electrode. Each expansion cavity comprises at least one wall formed by a part of the electrode. Preferably the electrode is an electrode formed by at least one material able to insert and de-insert Li+ ions, the volume of which material increases when Li+ ions are inserted. The empty volume of the expansion cavities can thus be at least partially filled by a part of the material forming the electrode when Li+ cations are inserted in the material. The expansion cavities are formed in the recessed zones of the current collector.
摘要:
A new anode configuration (20) is proposed for a lithium microbattery (10). The anode (20) preferably consists of nanotubes or of nanowires (24) such that the empty space (26) left between the different components (24) provides compensation for the inherent swelling upon discharging the microbattery (10). With the absence of stresses on the electrolyte (18), the lifetime of the battery (10) may be increased.