50 results about "Cuprous thiocyanate" patented technology

The invention discloses a double-sided power generation cadmium telluride thin film solar cell and a preparation method thereof. The double-sided power generation cadmium telluride thin film solar cell comprises a glass substrate layer, a transparent conductive film layer, a window layer, an absorbing layer, a back contact layer, a back electrode layer, a packaging material layer and a backboard glass layer in turn. Copper thiocyanate is used as the material of the back contact layer. Tungsten-doped indium oxide is used as the material of the back electrode layer. The p-type material copper thiocyanate is used as the back contact layer and the tungsten-doped indium oxide is used as the back electrode layer so that transparent back electrode of the cadmium telluride cell can be realized, double-sided power generation can be realized and the generation capacity of the cell can be enhanced; meanwhile, the built-in electric field can be enhanced by the strong p-type back contact so that the Voc and the FF of the cadmium telluride solar cell can be enhanced and the performance of the cell can be enhanced.

The invention belongs to the technical field of semiconductor optoelectronics, and in particular relates to a cuprous oxide / cuprous thiocyanate (Cu 2 O / CuSCN) heterojunction photoelectric thin film and preparation method thereof. The present invention provides a Cu 2 The O / CuSCN heterojunction photoelectric thin film and the preparation method thereof are characterized in that: the CuSCN photoelectric thin film prepared by electrochemical deposition is subjected to alkaline solution soaking treatment for a certain period of time, so as to promote the in-situ reaction of CuSCN to generate Cu 2 O, enabling in situ construction of Cu 2 The O / CuSCN heterojunction photoelectric thin film solves the problems of low photo-generated carrier mobility and high recombination rate of the CuSCN photoelectric thin film to a large extent, and greatly improves the photoelectrochemical performance of the CuSCN photoelectric thin film. Cu provided by the present invention 2 The O / CuSCN heterojunction photoelectric thin film and the preparation method thereof have the advantages of simple modification means, easy regulation and control of the heterojunction structure, obvious modification effect and low cost.

The water solution electrodepositing process of preparing cuprous thiocyanate (CuSCN) film includes the following steps: dissolving copper salt, thiocyanate and chelate in certain proportion into water as solvent; regulating the pH value to 2-7 to obtain electrolyte solution for electrodeposition; static complexing and homogenizing of the electrolyte solution for 4-72 hr; cleaning the base for electrodeposition with organic solvent, acid solution, alkali solution and water; and electrodepositing in common electrochemical deposition process. The electrochemical deposition process has temperature 15-75 deg.c and deposition potential from 0.2 v to -0.65 v. The deposited CuSCN film is water washed and dried at 60-100 deg.c. The present invention has the features of high stability of the electrodepositing solution, high depositing efficiency, low cost, less pollution and being suitable for various kinds of base material.

The present invention relates to a 2-oxazolidinone derivative preparation method, belongs to the technical field of organic synthesis. The preparation method is as follows: introducing carbon dioxide into primary amine, to obtain ammonium carbamate salt; then mixing the ammonium carbamate salt with a catalyst, a solvent, terminal alkyne and aldehyde; sealing the materials and stirring the materials at 40-120 DEG C for 8-24 h; after completion of the reaction, performing silical gel column chromatography, to obtaining the 2-oxazolidinone derivative, wherein the catalyst is cuprous chloride, cuprous bromide, cuprous iodide, cuprous thiocyanate, copper trifluoromethane sulfonate, cuprous oxide, copper sulfate, copper nitrate, or copper acetate; and the solvent is methanol, ethanol, ethylene glycol, diethylene glycol, isopropanol or N,N-dimethylformamide. According to the preparation method, the carbon dioxide is used as a protection agent of the primary amine and meanwhile as a reactant, and therefore the amount of catalyst is greatly reduced, the reaction efficiency is improved, and the reaction is performed at the atmospheric pressure, so that no oxygen-free operation is needed, the reaction is simple and safe, and the raw materials are cheap and readily available.