Abstract: The present invention relates to graphene coated iron based particles and a method of producing such. Provided is a composite powder suitable for powder metallurgy and additive manufacturing processes comprising particles of an iron based material with a coating of a graphene based material wherein the concentration of the graphene based material is between 0.1 wt % and 1.0 wt %.

Abstract: The present invention relates to a getter material and a production method thereof. The method enables control of a sol-gel process so that a nanoparticle getter material with intrinsic nanoparticles in a size range from 10 nm to 1 ?m can be produced with accurate size control. The intrinsic nanoparticles of the getter material are composites of magnesium oxide and amorphous magnesium carbonate, substances that have properties that are highly interesting for getter applications. The composition ratio of magnesium oxide to magnesium carbonate may preferably be in the range from 5:95 to 50:50.

Abstract: This invention relates to a printable composition and in particular to a printable composition for application to an electrochromic and/or electrochemical device. The printable electrolyte composition for the production of electrochemical devices comprises: 20-50% by weight, based on the total amount of the composition, of a thermally-curable base which comprises a resin; 20-70% by weight, based on the total amount of the composition, of a solvent; and 10-50% by weight, based on the total amount of the composition, of an electrolyte, wherein the composition has a viscosity of 0.3 Pas or higher.

Abstract: A process for rendering an electrically conducting polymer essentially non-conducting is provided, in which the polymer is brought into direct electrical contact with an electrolyte. Furthermore, an electric voltage is applied to the polymer using at least two electrodes connected to a voltage supply, each electrode independently being in electrical contact with one of the polymer and the electrolyte. The electrically conducting polymer is rendered non-conducting through electrochemical reactions occurring in the interface between the polymer and the electrolyte in response to the electric voltage.

Abstract: An electrochemical structure is disclosed, including a first electrochemically active element and an electrolyte, arranged near or in contact with the first electrochemically active element. In at least one embodiment, the electrolyte is deformable and/or movable between a first state, wherein the structure provides a first electric characteristic, and a second state, wherein the structure provides a second, different electric characteristic.

Abstract: An electrochemical device is provided, comprising a source contact connected to a first antenna pad, a drain contact connected to a second antenna pad, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and the at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and the gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to the gate electrode(s).

Abstract: An electrochemical device is provided, comprising a source contact connected to a first antenna pad, a drain contact connected to a second antenna pad, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to the gate electrode(s).

Abstract: A paper- or cardboard-based security product and a method of manufacturing it. The product comprises a paper or a cardboard which is equipped with an identifiable security symbol. According to the present invention, the security symbol comprises a layer in the product, one which consists of a synthetic, electrically conductive polymer, the conductivity of which has been changed locally to form an electrically conductive or, alternatively, electrically non-conductive figure. Furthermore, a figure indicating the security symbol has been fitted on the surface of the paper or the cardboard product. A security product according to the present invention can be produced simply by first applying a conductive polymer, for instance in a non-conductive form, onto a paper, after which an acidic figure is printed in such as way that the area below the figure becomes conductive. The figure can be detected and in this way it acts as a guarantee of authenticity for the product.

Abstract: An electrochemically active element is provided which comprises a first layer of PEDOT-PSS mixed with an adhesion promoter, and a second layer of PANI which is in direct electrical contact with said first layer. Such an element exhibits a substantially increased resistance from being overoxidized, as well as an electrical conductivity which is virtually the same as for pure PEDOT-PSS, and substantially better than for pure PANI. The electrochemically active element can be used in e.g. electrochemical pixel devices, transistors, diodes etc.

Abstract: An electrochemically active element is provided which comprises a first layer of PEDOT-PSS mixed with an adhesion promoter, and a second layer of PANI which is in direct electrical contact with said first layer. Such an element exhibits a substantially increased resistance from being overoxidised, as well as an electrical conductivity which is virtually the same as for pure PEDOT-PSS, and substantially better than for pure PANI. The electrochemically active element can be used in e.g. electrochemical pixel devices, transistors, diodes etc.

Abstract: An electrochromic device is provided comprising: (i) at least one material that is electrically conducting in at least one oxidation state and (ii) at least one electrochromic material, wherein said materials (i) and (ii) can be the same or different; at least one layer of a solidified electrolyte which is in direct electrical contact with said electrochromic element; and at least two electrodes comprising PEDOT-PSS, arranged side by side in a common plane and adapted for application of a voltage therebetween, one of said electrodes being in direct electrical contact with a component selected from said electrochromic element(s) and the other electrode(s) being in direct electrical contact with a component selected from said electrolyte layer(s) and said electrochromic element(s).

Abstract: An electrochemical transistor device is provided, which comprises a flexible substrate; a layer of organic material, which comprises a source portion, a drain portion and a transistor channel portion; a gate electrode arranged on said substrate separated from said layer of organic material; and a layer of solidified electrolyte arranged in overlapping electric contact with said gate electrode and only with the transistor channel portion of said layer of organic material, thereby defining said transistor channel portion, such that current between said source portion and drain portion is controllable by means of a potential applied to said gate electrode.

Abstract: An electrochromic device is provided comprising: at least one electrochromic element comprising (i) at least one material that is electrically conducting in at least one oxidation state and (ii) at least one electrochromic material, wherein said materials (i) and (ii) can be the same or different; at least one layer of a solidified electrolyte which is in direct electrical contact with said electrochromic element; and at least two electrodes comprising PEDOT-PSS, arranged side by side in a common plane and adapted for application of a voltage therebetween, one of said electrodes being in direct electrical contact with a component selected from said electrochromic element(s) and the other electrode(s) being in direct electrical contact with a component selected from said electrolyte layer(s) and said electrochromic element(s).

Abstract: An electrochemical device is provided, comprising a source contact connected to a first antenna pad, a drain contact connected to a second antenna pad, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and the at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and the gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to the gate electrode(s).

Abstract: An electrochemical transistor device is provided, comprising a source contact, a drain contact, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s).

Abstract: A process for rendering an electrically conducting polymer essentially non-conducting is provided, in which the polymer is brought into direct electrical contact with an electrolyte. Furthermore, an electric voltage is applied to said polymer using at least two electrodes connected to a voltage supply, each electrode independently being in electrical contact with one of said polymer and said electrolyte. Said electrically conducting polymer is rendered non-conducting through electrochemical reactions occurring in the interface between said polymer and said electrolyte in response to said electric voltage.

Abstract: A pixel device comprising an electrochemical transistor device with a source and a drain contact; a gate electrode; an electrochemically active element in direct electrical contact with source and drain contacts, and comprising a transistor channel comprising an organic material; and a solidified electrolyte in direct electrical contact with the active element, and an electrochromic device comprising an electrochromic element comprising a material conducting in at least one oxidation state and an electrochromic material; a solidified electrolyte layer in direct electrical contact with the electrochromic element; and two electrodes for application of a voltage and in direct electrical contact with a component selected from the electrolyte layer(s); in which one of the source and drain contacts of the electrochemical transistor device is in electrical contact with one of the electrodes of the electrochromic device.

Abstract: An electrochemical transistor device is provided, comprising a source contact, a drain contact, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s).

Abstract: A pixel device is provided, which comprises; (A) an electrochemical transistor device with a source and a drain contact; a gate electrode; an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof; and a solidified electrolyte in direct electrical contact with the electrochemically active element and the gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented; whereby flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s), and (B) an electrochromic device comprising: an electrochromic element comprising (i) a material that is electrically conduc