Xingye Mining: The revenue in 2020 was 940 million, an increase of 7.62% over last year; The gross profit margin is 48.82%. The company has no business dealings with photovoltaic silver paste, and the increase in silver demand has a positive impact on the company's production and operation.
Suzhou solid technetium: the revenue in 2020 was 65.438+80.5 billion, an increase of-8.88% compared with last year; Gross profit margin 18.36%. Diodes make faucets and develop silver paste for HIT batteries.
Dicos shares: In 2020, the company realized an operating income of 65.438+58.2 million, an increase of 265.438+0.765.438+0% compared with last year, and a compound increase of 37.92% in recent three years; Gross profit margin 13.33%.
Silver paste is a functional material based on silver powder, glass oxide and organic resin. Functionally, it can be divided into conductive silver paste, resistive silver paste and molten silver paste, of which conductive silver paste accounts for 90%.
Photovoltaic silver paste is the main demand area of silver paste, accounting for 87% of the demand for silver paste. In photovoltaic silver paste, high-temperature silver paste accounts for 98%. At present, only HJT battery uses low-temperature silver paste.
Photovoltaic silver paste accounts for 10% of the cost of PERC battery, and is mainly used for conducting electricity in the battery. The quality of silver paste directly affects the photoelectric performance of the battery and has an important influence on the efficiency of the battery.
Photovoltaic: short for solar power generation system, it is a new type of power generation system that directly converts solar radiation energy into electric energy by using photovoltaic effect of semiconductor materials of solar cells. There are two modes of independent operation and grid-connected operation.
At the same time, solar photovoltaic power generation system is classified as centralized, such as large-scale northwest ground photovoltaic power generation system; One is distributed (bounded by >: 6MW), such as photovoltaic power generation system on the roof of industrial and commercial enterprises and photovoltaic power generation system on the roof of residential buildings. 5. Photovoltaic is defined as direct conversion of light energy. In practical application, it usually refers to the conversion of solar energy into electric energy, that is, solar photovoltaic. Its realization is mainly through the use of solar panels made of semiconductor materials such as silicon, using light to generate direct current, such as solar cells that can be seen everywhere in our daily life.
Photovoltaic technology has many advantages: for example, there are no mechanical moving parts; In addition to sunlight, it does not need any other "fuel" and can work in direct and oblique sunlight; Moreover, from the choice of venues, it is also very convenient and flexible, and roofs and open spaces in cities can be applied.