Perovskite is a crystalline material with the general molecular formula ABX3, in the shape of an octahedron. It is widely used in photovoltaics, LEDs and other fields because of high photoelectric conversion efficiency. Perovskite solar cells (PSCs) are utilized perovskite structural materials as light-absorbing materials, and are representative of the third generation of high-efficiency thin-film cells.
Slot-die coating is a coating technique in which a solution is delivered onto a substrate via a narrow slot positioned close to the surface. The slot-die has a high aspect ratio outlet controlling the final delivery of the coating liquid onto the substrate. This results in the continuous production of a wide layer of coated material on the substrate, with adjustable width depending on the dimensions of the slot-die outlet. By closely controlling the rate of solution deposition and the relative speed of the substrate, slot-die coating affords thin material coatings with easily controllable thicknesses in the range of 10 nanometers to hundreds of micrometers after evaporation of the precursor solvent.
A Chinese company has launched the world's first mass production of large modules of new solar cells. The new solar cells are bendable and ultra-thin flexible perovskite cells. Although the manufacturing cost is three times that of existing photovoltaic cells, it may be reduced to half that of silicon type cells in the future. At present China leads the way of perovskite cell in mass production.
DaZheng (Jiangsu) Micro Nano Technology Co., Ltd.
Address: Building No. 1, Semiconductor Industrial Park, No. 298, Daijiamen Road, High-tech Zone, Zhenjiang City, Jiangsu Province, China