5 results about "Tetracyanoquinodimethane" patented technology

The application discloses a method for P-type doping of an organic field effect transistor semiconductor layer and an organic field effect transistor prepared by the method. 2,3,5,6-tetrafluoro-7,7',8,8'-tetracyanoquinodimethane (F4-TCNQ) is dissolved in an orthogonal solvent of the organic semiconductor layer as a P-type dopant, and the P-type dopant is spin-coated on an organic semiconductor layer film which has been spin-coated in an air atmosphere, and the doping is activated by rapid thermal annealing, so that the problems caused by hopping transmission and Coulomb traps in charge transport are improved, the threshold voltage is reduced, and the on-off ratio is improved. For a P-type field effect transistor, the P-type doping enhances hole transport, effectively improves the saturation current, and suppresses electron transport, so that the power consumption is reduced when the transistor is turned off. The doping method is based on a solution method and is simple in process and low in preparation cost, can be applied to large-scale production, and has a good application prospect in flexible and portable electronic devices.

The present invention relates to a preparation method and application of an in-situ grown dual-MOF Janus fractal network material. The specific steps include: removing the mesophyll of a leaf using an alkaline solution to obtain a vein structure; sensitizing and activating the veins before electroplating them with copper; and sequentially growing two MOFs, CuTCNQ (TCNQ = 7,7,8,8-tetracyanoquinodimethane) and CuBTC (BTC = 1,3,5-benzenetricarboxylic acid), in situ on the front and back of the copper-plated veins, forming a Janus fractal metal network with an asymmetric microstructure and differential wettability. The front of the veins is covered with hydrophobic CuTCNQ nanoneedles, while the back is covered with hydrophilic rod-shaped CuBTC. Compared to traditional bare vein structures for fog water collection, the dual-MOF Janus fractal network material prepared by the present invention can significantly improve fog water collection efficiency. The preparation process has a short cycle and can prepare a super-hydrophobic structure in one step without the need for additional low-surface-energy materials for modification. More importantly, the entire process is fluorine-free, achieving true green environmental protection.

The invention belongs to the technical field of biosensors, and particularly relates to a glucose monitoring sensor and a preparation method thereof.The glucose monitoring sensor comprises a microneedle array electrode serving as a matrix, the microneedle array electrode is modified with a composite layer of peroxide polypyrrole and tetrathiafulvalene-tetracyano quinolino dimethane, and the composite layer is coated with a composite layer of polypyrrole peroxide and tetrathiafulvalene-tetracyano quinolino dimethane. The preparation method of the sensor comprises the following steps: preparing the microneedle array electrode substrate from the microneedle array electrode base material through two-photon polymerization 3D printing; the micro-needle array electrode substrate is used for preparing a micro-needle array three-electrode by adopting a magnetron sputtering-chlorination process; performing pyrrole monomer polymerization on a working electrode area of the three electrodes of the microneedle array to form a PPyox layer; a TTF-TCNQ composite layer is formed on the PPyox layer; according to the glucose monitoring sensor disclosed by the invention, the sensing performance of the existing CGMS can be improved, the medium loss of the sensor is avoided, the stability is improved, and the detection range is expanded.

The application discloses a zinc metal eutectic crystal, a preparation method thereof and application of the zinc metal eutectic crystal in photocatalytic degradation of chemical warfare agents. The zinc metal eutectic crystal is synthesized by using pyrene, 7,7,8,8-tetracyanoquinodimethane and zinc acetate dihydrate as raw materials, adding an organic solvent and adopting a simple solvent evaporation method, and the product is marked as: Zn 2+ -TCNQ-Py. The application can obtain the zinc metal eutectic crystal by the simple and low-cost solvent evaporation method, and the disadvantages of low yield and time consumption are overcome. Meanwhile, the Zn 2+ -TCNQ-Py has a strong active oxygen generation capacity, can photocatalytically degrade a chemical warfare agent, mustard gas analog, into low-toxicity 2-chloroethyl ethyl sulfoxide, has superior degradation efficiency and good cycle stability, and has high practical application value.

The present invention belongs to the technical field of two-dimensional magnetic materials, and relates to a method for regulating two-dimensional magnetic materials through small molecule chemical adsorption, including the following steps; Step 1, exfoliation and transfer of two-dimensional magnetic materials; Step 2, preparation of a solution of 7,7,8,8-tetracyanoquinodimethane (TCNQ); Step 3, surface spreading of TCNQ molecules. The present invention utilizes the adsorption of organic small molecules on the surface of two-dimensional materials to form an organic-inorganic hybrid composite, improving the comprehensive magnetic properties of the composite, solving the disadvantages of low Curie temperature and poor controllability of magnetic regulation of two-dimensional materials. The formed composite has a high Curie temperature and has broad application prospects in the field of spintronics.