2results about How to "Moderate content" patented technology

The application discloses a kind of adhesive resin, composite multilayer resin material and its preparation method and application, belong to the field of plastic synthesis.First by abietic acid and maleic anhydride mixing, then with the regenerated low-density polyethylene mixing, adhesive resin is prepared, and then it is prepared as adhesive layer to obtain composite multilayer resin material.The application uses maleic anhydride as the bridge between abietic acid and polyethylene, improves the grafting rate of abietic acid, and the polyethylene in the application is regenerated low-density polyethylene, which is modified by abietic acid to make the regenerated low-density polyethylene as a bonding resin, and then a composite multilayer resin material is prepared.

This application relates to the field of solar cells, disclosing perovskite materials, perovskite layers, their preparation methods, perovskite solar cells, and photovoltaic modules. The perovskite material has a band gap of 1.65 eV to 1.75 eV, and its chemical formula is ABX3, where A is an A-site cation, B is a B-site cation, and X is an X-site anion. The elements corresponding to the X-site anion include iodine, bromine, and chlorine. In the perovskite material, the mass percentage of bromine is 0.0001% to 0.0012%, and the mass percentage of chlorine is 0.0005% to 0.0020%. The perovskite material provided in this application, while meeting the wide band gap requirement, helps to avoid the formation of bromine-rich phases, thereby effectively preventing the separation of bromine and iodine phases and ensuring that the perovskite layer prepared using this material has high structural stability.