3 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 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.