Abstract: A device and method for detecting a phase transition between a liquid phase and a solid phase of a substance include a pair of electrodes, a sensing layer arranged in an electrical path between the pair of electrodes, and means for measuring a first electrical characteristic of the electrical path. The sensing layer includes a mixed ion and electron conducting composite material. The composite material has an electrical property, in particular electrical resistance, which shows a peak variation as a function of time at the phase transition, such as an onset of ice formation. Computing means process the first electrical characteristic to indicate an occurrence of the phase transition.

Abstract: The present invention relates to an energy storage device comprising a positive electrode, a negative electrode, and an aqueous polymer electrolyte disposed between the positive electrode and the negative electrode. At least one of the electrodes is an organic electrode. The aqueous polymer electrolyte comprises a metal ion component comprising a metal cation being Na+ or K+; a polymer or copolymer comprising at least one monomer unit being a carboxylic acid. At least 20 mol-% of a total amount of monomers in the polymer is monomers comprising carboxylic acid.

Abstract: The present invention provides thermoelectric device comprising a first electrode, a second electrode, a first electrolyte composition capable of transporting cations, a second electrolyte composition capable of transporting anions and a connector comprising mobile cations and mobile anions, wherein the first electrolyte composition is connected to said first electrode by being in ionic contact and the second electrolyte composition is connected to said second electrode by being in ionic contact and said connector is in ionic contact with said first and said second electrolyte composition, such that an applied temperature difference over said electrolyte compositions or an applied voltage over said electrodes facilitate transport of ions to and/or from said electrodes via said electrolyte compositions. There is also provided a method for generating electric current and a method for generating a temperature difference.

Abstract: A ferroelectric field-effect transistor device includes: a semiconductor layer; a ferroelectric layer; and an ion conductor layer arranged between the semiconductor layer and the ferroelectric layer and in contact with the semiconductor layer. Methods for producing the ferroelectric field-effect transistor device and using the ferroelectric field-effect transistor device in non-volatile memory devices that reduce a readout voltage to a voltage as low as 0.2 V are also disclosed.

Abstract: A ferroelectric field-effect transistor device includes: a semiconductor layer; a ferroelectric layer; and an ion conductor layer arranged between the semiconductor layer and the ferroelectric layer and in contact with the semiconductor layer. Methods for producing the ferroelectric field-effect transistor device and using the ferroelectric field-effect transistor device in non-volatile memory devices are also disclosed.

Abstract: The present invention provides a thermoelectric device comprising a first electrode, a second electrode, and conducting composition capable of conducting ions, wherein the first and second electrodes are ionically coupled via said conducting composition such that an applied temperature difference over said conducting composition or an applied voltage over said electrodes facilitate transport of ions to and/or from said electrodes via said conducting composition, and wherein said conducting composition capable of conducting ions comprises a polymeric electrolyte. There is also provided a method for generating electric current and a method for generating a temperature difference.

Abstract: The present invention provides thermoelectric device comprising a first electrode, a second electrode, a first electrolyte composition capable of transporting cations, a second electrolyte composition capable of transporting anions and a connector comprising mobile cations and mobile anions, wherein the first electrolyte composition is connected to said first electrode by being in ionic contact and the second electrolyte composition is connected to said second electrode by being in ionic contact and said connector is in ionic contact with said first and said second electrolyte composition, such that an applied temperature difference over said electrolyte compositions or an applied voltage over said electrodes facilitate transport of ions to and/or from said electrodes via said electrolyte compositions. There is also provided a method for generating electric current and a method for generating a temperature difference.

Abstract: The invention relates to a organic field effect transistor device comprising: an organic semiconductor layer; a source electrode arranged in electronic contact with the said organic semiconductor; a drain electrode arranged in electronic contact with the said organic semiconductor; a gate electrode; an electrolyte layer arranged between said gate electrode and said organic semiconductor layer; wherein the organic semiconductor layer comprises a semiconducting polymeric material comprising one or more blocks of conjugated polymer combined with one or more blocks of copolymer; preferably an amphiphilic copolymer. Also a method of producing the device, and a polyanionic polymer is provided by the invention.

Abstract: A moisture sensor, for measuring moisture in a building without leaving visible scars to the building surface, is provided. The moisture sensor includes a flexible carrier carrying an antenna for receiving EM-radiation between 9 kHz and 11 MHz and a resonant circuit including a moisture reactive element. The moisture reactive element includes a hygroscopic electrolyte arranged between a first and a second electrode, wherein the electrolyte in the presence of moisture forms mobile ions and provides a complex impedance at least in response to the alternating voltage, which complex impedance varies with the moisture content of the electrolyte.

Abstract: A moister sensor, for measuring moister in a building without leaving visible scars to the building surface, is provided. The moister sensor includes a flexible carrier carrying an antenna for receiving EM-radiation between 9 kHz and 11 MHz and a resonant circuit including a moister reactive element. The moister reactive element includes a hygroscopic electrolyte arranged between a first and a second electrode, wherein the electrolyte in the presence of moister forms mobile ions and provides a complex impedance at least in response to the alternating voltage, which complex impedance varies with the moister content of the electrolyte.

Abstract: A fast organic field effect transistor (100), which operates at low voltages, is achieved by the introduction of an oligomeric or polymeric electrolyte (131) between the gate electrode (141) and the organic semiconductor layer (121), which electrolyte (131) has a dissociation constant of at least 10?8. Said organic semiconductor layer (121) is in contact with the source electrode (111) and the drain electrode (112) of the transistor. In operation a potential (152) applied to said gate electrode (141) controls the current A between said source electrode (111) and said drain electrode (112).

Abstract: A fast organic field effect transistor (100), which operates at low voltages, is achieved by the introduction of an oligomeric or polymeric electrolyte (131) between the gate electrode (141) and the organic semiconductor layer (121), which electrolyte (131) has a dissociation constant of at least 10?8. Said organic semiconductor layer (121) is in contact with the source electrode (111) and the drain electrode (112) of the transistor. In operation a potential (152) applied to said gate electrode (141) controls the current A between said source electrode (111) and said drain electrode (112).