Abstract: An electromechanical device comprising: first and second electrodes each comprising a metal layer; an active layer comprising at least one ferroelectric polymer and disposed between the first and the second electrode. The first electrode and the second electrode each comprise an interface layer comprising poly(3,4-ethylenedioxythiophene). Each interface layer is interposed between the active layer and the corresponding metal layer. The invention further relates to a method for manufacturing such a device.

Abstract: Sheet comprising a flexible support and a coating at least partially covering at least one face of the support, the support being made of a support material exhibiting dielectric properties, the coating being made of a coating material different from the support material and exhibiting magneto-dielectric properties or dielectric properties.

Abstract: A photodetector is provided, including an active layer configured to generate charge carriers of a first type and of a second type by absorption of electromagnetic radiation; a first electrode configured to collect the charge carriers of the first type; and a second electrode configured to collect the charge carriers of the second type, the first electrode including a layer configured to collect the charge carriers of the first type, the layer including self-assembled monolayers, and nanowires comprising metal and functionalized by the self-assembled monolayers, the self-assembled monolayers of the layer are configured to functionalize the nanowires and to modify a work function of a material forming the nanowires. A method for manufacturing a photodetector and an electrode for a photodetector are also provided.

Abstract: Thermal pattern sensor comprising several pixels arranged on a substrate, each pixel including at least one pyroelectric capacitance formed by at least one portion of pyroelectric material arranged between at least one lower electrode and at least one upper electrode, with the lower electrode arranged between the substrate and the portion of pyroelectric material, and in which at least one protective dielectric layer is arranged between the portion of pyroelectric material and the upper electrode and comprises at least one of the following materials: fluoropolymer, self-assembled molecular monolayer, dielectric material soluble in a solvent orthogonal to the pyroelectric material.

Abstract: Thermal pattern sensor comprising several pixels located on a substrate, each pixel comprising a pyroelectric capacitance, the pyroelectric capacitance comprising, a layer of porous pyroelectric material located between a first electrically conducting electrode and a second electrically conducting electrode, particles made of a first material at least partially filling the pores of the layer of porous pyroelectric material, the first material being electrically insulating and having pyroelectric properties and a layer made of a second material being placed between the layer made of a pyroelectric material and the second electrode, the second material being electrically insulating and having pyroelectric properties.

Abstract: A thermal pattern sensor including a plurality of pixels arranged on a substrate. Each pixel has a pyroelectric capacitance formed by at least one pyroelectric material portion arranged between a lower electrode and an upper electrode. The sensor has an abrasion-resistance coating, located on the side opposite the substrate and including pillars embedded in an abrasion-resistance layer, the pillars having a thermal conductivity strictly higher than that of the abrasion-resistance layer. A high thickness of the anti-abrasion protection coating can be achieved with a high rate of thermal transfer through the latter.

Abstract: A flexible film of crystalline or semi-crystalline material comprising a first region surrounded by a first amorphized wall.

Abstract: The device intended to be thermoformed comprises a substrate capable of being thermoformed and an electrically conductive member integral with the said substrate. The electrically conductive member comprises: electrically conductive particles, an electrically conductive material, electrically conductive elements of elongated shape. The electrically conductive material has a melting point which is strictly less than the melting point of the electrically conductive particles and than the melting point of the elements of elongated shape.

Abstract: An electromechanical device comprising: first and second electrodes each comprising a metal layer; an active layer comprising at least one ferroelectric polymer and disposed between the first and the second electrode. The first electrode and the second electrode each comprise an interface layer comprising poly(3,4-ethylenedioxythiophene). Each interface layer is interposed between the active layer and the corresponding metal layer. The invention further relates to a method for manufacturing such a device.

Abstract: A matrix-array optoelectronic device includes a substrate on which a matrix array of what are called bottom electrodes is deposited; an active structure, which is preferably continuous and organic, arranged above the matrix-array of bottom electrodes, the structure being suitable for detecting light; and at least one what is called top electrode lying above the active structure, the top electrode being transparent to the light emitted or detected by the active structure; and at least one conductive element that is borne by the substrate without interposition of the active structure and that is connected to the top electrode by at least one vertical interconnection, the conductive element having an electrical conductivity greater than that of the top electrode. The device may also comprise a layer made of scintillator material, the layer being fastened to the top electrode, so as to form an x-ray imager.

Abstract: The invention relates to a manufacturing process of a pixel array of a thermal pattern sensor comprising the steps of: providing a substrate; depositing a first layer of electrically conductive material, including depositing electrically conductive tracks, depositing of connector pins and depositing a ground strip; depositing of second layer of pyroelectric material covering the tracks and leaving at least part of the connector pins free; depositing of third layer of electrically conductive material; depositing of fourth layer of dielectric material in contact with the third layer; depositing of a fifth layer including electrically conductive heating tracks; depositing of a sixth protective layer, wherein the step of depositing the second and/or third and/or fourth and/or sixth layer is carried out by slot-die coating.

Abstract: A photoresistor comprises two electrodes connected by a photosensitive layer of the photoresistor, and at least one additional layer which is in contact with the photosensitive layer in order to influence the behavior of the photoresistor regarding carrier collection between the two electrodes, in order to improve the sensitivity of the photoresistor.

Abstract: Thermal pattern sensor comprising several pixels located on a substrate, each pixel comprising a pyroelectric capacitor, the pyroelectric capacitor comprising a pyroelectric material located between two electrically conducting electrodes, the pyroelectric material comprising a sol-gel matrix in which first particles made of a first material and second particles made of a second material are dispersed. The first material being chosen from among calcium, lanthanum, tantalum, barium, lead and/or strontium oxides, the second material being chosen from among titanium, antimony, tin, zinc, gallium, vanadium and/or manganese oxides.

Abstract: A method for preparing coated metal nanoparticles, each nanoparticle comprising a core constituted of at least one metal M and a layer constituted of at least one polymer, the layer coating the metal core. The method comprises the steps: (a1) preparing a solution A comprising the at least one metal M in the form of cations Mn+, n being an integer comprised between 1 and 3, each metal M being a transition metal of atomic number comprised between 21 and 30, a polyol, and a noble metal salt; (a2) preparing a solution B comprising at least one organic monomer of the at least one polymer, in an organic solvent; (b) mixing solutions A and B, this mixture being heated to the boiling temperature of the polyol; and (c) recovering the coated metal nanoparticles.

Abstract: A device including an electrically conducting track arranged on a support includes a step of supply of the support, and a step of formation of the electrically conducting track on the support including a step of supply of a solution intended to be deposited on the support, a step of deposition of the solution by printing on the support. The step of supply of the solution is such that the solution supplied includes a mixture of a solvent, of a set of metal particles and of a metallic material having a melting point below that of the metal particles of the set of metal particles, and the method includes a step of melting of the metallic material which results in the formation of a solder of metallic material between metal particles of the set of metal particles.

Abstract: The invention relates to a heat pattern sensor including a matrix of pyroelectric capacitances. The sensor further includes an electromagnetic shielding stage, electrically conducting, situated between a stage including a pyroelectric material and a contact surface of the sensor. The electromagnetic shielding stage includes a shielding layer which comprises nanowires and/or nanotubes lying in a surrounding medium. The nanowires and/or nanotubes have a thermal conductivity greater than that of the surrounding medium. A ratio between a distribution pitch of the pixels of the matrix of pixels and a thickness of the shielding layer is greater than or equal to 20. The invention makes it possible to obtain at the same time rapid heat transfers through the electromagnetic shielding stage and low lateral heat transfers, from one pixel to the other of the sensor.

Abstract: A method for producing a stack, includes the following steps: forming a first layer able to conduct electricity, forming a layer of interest on the first layer, the layer of interest comprising at least one free volume, forming at least one repairing element, each repairing element at least partially filling a free volume, called the free volume of interest, the repairing element comprising at least one insulating layer and leaving free an upper surface of the layer of interest opposite the first layer located outside of the at least one free volume, forming a second layer, able to conduct electricity, on the layer of interest, the second layer covering the repairing element and the free surface, the step of forming the repairing element comprising the following steps: forming, on the layer of interest, a layer that extends at least partially into the free volume of interest, covering at least one portion of the buffer layer located in the volume of interest with a filling layer, the buffer layer and the fill

Abstract: Thermal pattern sensor comprising several pixels arranged on a substrate, each pixel including at least: a pyroelectric capacitance formed by at least one portion of pyroelectric material arranged between at least one lower electrode and at least one upper electrode, with the lower electrode arranged between the substrate and the portion of pyroelectric material, a dielectric layer such that the upper electrode is arranged between the portion of pyroelectric material and the dielectric layer, a heating element including at least one deposition of electrically conductive particles and such that the dielectric layer is arranged between the upper electrode and the heating element, a protective layer arranged between the dielectric layer and the heating element and including at least one material of which the Shore A hardness is greater than or equal to around 60.

Abstract: Sheet comprising a flexible support and a coating at least partially covering at least one face of the support, the support being made of a support material exhibiting dielectric properties, the coating being made of a coating material different from the support material and exhibiting magneto-dielectric properties or dielectric properties.

Abstract: A thermal pattern sensor including a plurality of pixels arranged on a substrate. Each pixel has a pyroelectric capacitance formed by at least one pyroelectric material portion arranged between a lower electrode and an upper electrode. The sensor has an abrasion-resistance coating, located on the side opposite the substrate and including pillars embedded in an abrasion-resistance layer, the pillars having a thermal conductivity strictly higher than that of the abrasion-resistance layer. A high thickness of the anti-abrasion protection coating can be achieved with a high rate of thermal transfer through the latter.