Disclosed is a polymer blend comprising an organic semiconductor (OSC) polymer blended with an isolating polymer and method for making the same. The OSC polymer includes a diketopyrrolopyrrole fused thiophene polymeric material, and the fused thiophene is beta-substituted. The isolating polymer includes a non-conjugated backbone, and the isolating polymer may be one of polyacrylonitrile, alkyl substituted polyacrylonitrile, polystyrene, polysulfonate, polycarbonate, an elastomer block copolymer, derivatives thereof, copolymers thereof and mixtures thereof. The method includes blending the OSC polymer with an isolating polymer in an organic solvent to create a polymer blend and depositing a thin film of the polymer blend over a substrate. Also disclosed is an organic semiconductor device that includes a thin semiconducting film comprising OSC polymer.

A thin film transistor includes a gate electrode, a semiconductor layer overlapped with the gate electrode, a gate insulating layer between the gate electrode and the semiconductor layer, and a source electrode and a drain electrode electrically connected to the semiconductor layer. The semiconductor layer includes a plurality of holes. The gate insulating layer may include a plurality of recess portions at a surface of the gate insulating layer facing the semiconductor layer. A method of manufacturing the thin film transistor is provided. A thin film transistor array panel and an electronic device may include the thin film transistor.

A biological field-effect transistor (BioFET) includes source and drain regions formed in a substrate, an insulating layer disposed on a surface of the substrate, a gate disposed on the insulating layer and extending between the source and drain regions, a well region containing an electrolyte solution configured to retain an analyte, a three-dimensional (3D) graphene layer forming a channel region in the substrate, and a passivation layer. The graphene layer is biofunctionalized with a molecular recognition element configured to alter one or more electrical properties of the 3D graphene layer in response to exposure of the molecular recognition element to the analyte. The passivation layer is configured to prevent the electrolyte solution from contacting the source and drain. In some aspects, the 3D graphene layer is produced from carbon-containing inks. In other aspects, the 3D graphene layer includes a convoluted 3D structure configured to prevent graphene restacking.

The invention relates to novel organic semiconducting compounds containing a polycyclic unit, to methods for their preparation and educts or intermediates used therein, to compositions, polymer blends and formulations containing them, to the use of the compounds, compositions and polymer blends as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices, perovskite-based solar cell (PSC) devices, organic photodetectors (OPD), organic field effect transistors (OFET) and organic light emitting diodes (OLED), and to OE, OPV, PSC, OPD, OFET and OLED devices comprising these compounds, compositions or polymer blends.

The present disclosure relates to new metal complexes, including derivatives thereof, methods of making the metal complexes, and uses thereof, including uses, for example, as photosensitizers and as photocatalysts. In an embodiment, a metal complex having the structure of Formula (I): a salt, hydrate, solvate, tautomer, optical isomer, or combination thereof.

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A semiconductor mixed material and manufacturing method thereof, a thin film transistor and an electronic device are provided. The semiconductor mixed material includes an inorganic semiconductor nanoparticle and an organic semiconductor material, and the inorganic semiconductor nanoparticle is dispersed in the organic semiconductor material. The embodiments of the present disclosure ensure both a high electron mobility and a high charge transfer rate by mixing the inorganic semiconductor nanoparticle with the organic semiconductor material.

A carbon nanotube composite is described that can be accurately applied to a desired position by inkjet and a dispersion liquid using the same, where a main object is a carbon nanotube composite in which a conjugated polymer is attached to at least a part of the surface of a carbon nanotube, the conjugated polymer having a side chain represented by general formula (1):

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wherein R, X and A are defined as described.

An object is to provide a field effect transistor using a metal organic framework film as a semiconductor layer and having a novel structure. This embodiment is a field effect transistor that includes a substrate, a source electrode, a drain electrode, a gate electrode, and a metal organic framework film as a semiconductor layer. The metal organic framework film has a stacked structure. A plurality of crystalline structures in which organic ligands having a π-conjugated skeleton and metal ions are coordinated to be developed in a planar direction of the substrate are stacked on the substrate via a π-π interaction in the stacked structure. The crystalline structures each have pores formed by the coordination of the organic ligands and the metal ions. The pores in the adjacent crystalline structures communicate with one another in a film thickness direction in the stacked structure. The field effect transistor is a top-contact type.

The invention relates to novel organic semiconducting (OSC) polymers containing a polycyclic acceptor-donor-acceptor (A-D-A) type repeating unit, to methods for their preparation and educts or intermediates used therein, to compositions and formulations containing them, to the use of the polymers and compositions as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices, perovskite-based solar cell (PSC) devices, organic photo-detectors (OPD), organic field effect transistors (OFET) and organic light emitting diodes (OLED), and to OE, OPV, PSC, OPD, OFET and OLED devices comprising these polymers or compositions.

An ethylene-sensitive sensor is described that includes a power source; an ethylene-sensitive semiconductor component electrically connected to the power source, the semiconducting component comprising a semiconducting organic compound; an input electrode electrically connected to the semiconductor component; and an output electrode electrically connected to the semiconductor component. The semiconductor material is at least partially exposed such that it can be contacted by a vapor. Methods of using the ethylene-sensitive sensor to detect ethylenic compounds are also described.