34results about How to "Improve the crystallization effect" patented technology

The invention relates to the display field, and provides a method for preparing a polysilicon layer: depositing a layer of porous metal thin film on the microcrystalline silicon layer of the base substrate; putting the base substrate formed with the metal thin film into the Etching in a mixed solution of an oxidizing agent; after the etching is completed, wash with an acid solution and deionized water in sequence to obtain a treated microcrystalline silicon layer; deposit an amorphous silicon layer on the treated microcrystalline silicon layer, and Laser annealing treatment to form a polysilicon layer. The invention also provides a thin film transistor whose polysilicon layer is prepared by the method. The invention uses the metal thin film as a catalyst to catalyze the etching of the microcrystalline silicon layer, so that silicon seeds with uniform growth direction and uniform size are formed on the surface of the microcrystalline silicon layer. On the basis of the silicon seed crystal, amorphous silicon is deposited and laser annealed to form polycrystalline silicon with a grain size of 350-360nm and 3σ<140nm. The grain growth direction is consistent, and the area where the grain boundary appears is effectively controlled.

The invention relates to the field of proton conductive materials and discloses an MOFs (Metal Organic Frameworks) material with excellent proton conductivity and a preparation method thereof. According to the method, a two-dimensional layer target material is prepared through heating by taking H4L as a linking ligand and taking Cu<2+> and Cl<-> as connection points. The material disclosed by theinvention has the advantages that the proton conductivity is good; the preparation method is simple and easy to operate; the yield is high; the thermodynamic and chemical properties are stable; and the material is easy to popularize and apply in a large area.

The invention relates to a salt gypsum crystal transformation activator. The preparation method of the salt gypsum crystal transformation stimulator is to graft maleic anhydride triethanolamine ester on acid-hydrolyzed starch; specifically, it comprises the following steps: acid-hydrolyze starch; synthesize maleic anhydride Acid anhydride triethanolamine ester; the starch after acid hydrolysis is grafted to maleic anhydride triethanolamine ester by semi-dry method to prepare salt gypsum crystal transformation stimulator. It also relates to a method for realizing salt gypsum transformation by utilizing the activator. The activator in the present invention can directly hydrothermally transform salt gypsum into α-type high-strength hemihydrate gypsum in one step, greatly improving the competitive advantage of salt gypsum series products, and realizing the large-scale and high-value resources of by-product salt gypsum use.

The invention relates to a production method for a Li2O-A2O3-SiO2-series grinding-free and polishing-free black transparent microcrystalline glass plate. Because modified component niobium oxide is added into a formula, the fusing temperature of the glass can be lowered by adding the niobium oxide. The modified component niobium oxide has good crystallization performance and also has the physical properties that the crystallization temperature is lowered, the coefficient of expansion is lowered, and the like. In the calendaring molding equipment, because the traditional solid molded roll is changed into a hollow roller structure and an inner core rod is arranged in the hollow roller structure, circulating cooling water is introduced into the hollow roller during production; the temperature of a molded roll body can be accurately controlled by controlling the water inlet temperature, the water outlet temperature and the flow speed, and in addition, the roller can be evenly cooled; the microcrystalline glass plate calendered and molded by the roller is flat, and the obtained microcrystalline glass plate has a smooth and flat surface so as to satisfy the user requirement, and does not deform at the high temperature for a long time; because grinding treatment and polishing treatment are omitted in the product production process, two working procedures of grinding and polishing in the product process are reduced; and therefore, the product quality is improved, the production efficiency is improved, the production cost is lowered, the production environment for workers is improved, and the clean production is realized.