1. Amorphous silicon solar cells are cheaper in price than crystalline silicon gutta percha and laminate

a. Silicon thin film battery is only microns thick（ μ m) Class, thinner than crystalline silicon battery;

b. Glass, stainless steel, plastic, etc. are used as the substrate materials (currently glass is mainly used);

c. The main materials for the production of thin film silicon are SiH4, H2, etc., which are rich in raw materials.

2. Good power generation performance (good weak light performance and high temperature performance)

a. Good high temperature performance: the electrical characteristic of the solar cell is a negative temperature coefficient. The output power of the Si solar cell will decrease with the increase of temperature. The temperature coefficient of the output power of crystalline silicon is generally - 0.5%/℃ (10 ℃ higher than the standard temperature of 25 ℃, the output power will decrease by 5%), However, the power temperature coefficient of Zhejiang Cineng Photovoltaic Technology Co., Ltd.'s non product silicon battery products is -0.19%/℃ (10 ℃ higher than the standard temperature of 25 ℃, and the output power drops by less than 2%); compared with other crystalline silicon solar cells, the amorphous silicon cells lose less efficiency when the temperature increases, because the temperature coefficient of non product silicon is low.

b. Good weak light performance: according to the actual test results, the annual power generation of crystalline silicon and amorphous silicon solar cells with the same power is 10% - 20% more than that of crystalline silicon. Because the voltage of amorphous silicon solar cells is high under weak light, they can still generate electricity, which has a good weak light effect: while the voltage of crystalline silicon decreases rapidly under weak light, and the power generation decreases sharply, especially in areas with overcast and rainy weather, The power generation advantage of amorphous silicon is more obvious.

The solar cell modules installed in the solar power plant system only have very little time to receive 1000 watts of strong light irradiation per square meter, and the intensity of sunrise and sunset and cloudy days is very low. In weak light, amorphous silicon cells have great advantages over crystalline silicon cells. Amorphous silicon cells can still generate electricity when the light intensity is very weak, while crystalline silicon cells cannot. The good high temperature characteristics and weak light characteristics of amorphous silicon cell make the power generation of amorphous silicon cell module with the same power higher than that of crystalline silicon cell module. For example, after two years of outdoor tests, the 2.5KW stainless steel amorphous silicon battery module of Uni Solar in the United States generates 22% more power than the same power crystalline silicon battery module; Oxford University installed the amorphous silicon and crystalline silicon battery modules from 11 manufacturers with the same power in Oxford, England and Mallorca, Spain respectively. The amorphous silicon battery modules installed in Oxford, England generate 13.6% more power than the crystalline silicon battery modules, and the amorphous silicon battery modules installed in Mallorca, Spain generate 20.7% more power than the crystalline silicon battery modules, which has a good weak light effect.

c. Soft l-V characteristic: another advantage of amorphous silicon battery compared with crystalline silicon battery is that its current voltage characteristic curve is softer, and it is easier to reach the maximum power. For solid battery, if the operating voltage exceeds the maximum allowable power, the power will drop rapidly; (As shown in the figure)

3. Energy conservation and environmental protection

a. Low temperature process (200~220 ℃) is adopted, with less energy consumption;

b. Materials and devices are completed synchronously, and the process is simple;

c. It is convenient for large-scale continuous production, and the current product size is 0.8~5.7m2;

d. Production is close to zero pollution and zero emission, meeting the requirements of energy conservation and environmental protection.

4. It is easy to conduct double glass sealing, and its service life is not only comparable to that of crystalline silicon battery modules, but also durable

Because the connection of the amorphous silicon cell uses the inline integrated circuit, while the piece of the crystalline silicon solar cell is formed by the serial welding of the welding strip, and the welding process is prone to produce problems such as fragments, welding deviation, uneven arrangement, poor welding, etc. These problems will not occur to the amorphous silicon thin film panel, which is very important for the life of the module. In addition, the film is deposited on the back of the front glass, so both the sealing polymer and EVA are behind the battery and will not block the sunlight transmission. Therefore, the power of the laminated plate and the strand dripping plate (crystalline silicon battery module) of the crystalline silicon battery chip is reduced or dropped due to the yellowing of EVA, and these problems will not occur on the amorphous silicon module.