TOPCon solar panel is a new type of battery emerging in recent years, but for most people, it is full of mystery, know little about it. Today, let’s go into TOPCon solar panel.
What is TOPCon solar panel?
Solar panels are usually categorized into n-type and p-type, and TOPCon solar panel belong to n-type solar panel. Compared to p-type solar panel, where boron or gallium is added to the semiconductor material, n-type panel are usually doped with phosphorus in the semiconductor material used, which makes the semiconductor material of n-type solar panel negatively charged, which makes TOPCon solar panel more effective than ordinary p-type solar panel in low-light conditions.
How TOPCon solar panel work.
In order to protect itself from partial loss of performance, a good solar cell must prevent the carrier composite inside the panel, and the TOPCon solar panel is no exception. TOPCon solar panel choose to prevent carrier compounding by keeping the metal at the junction points out of contact with the silicon layer. To accomplish this, the surface of the TOPCon solar panel is usually covered with an extremely thin film of silicon oxide, which creates a passivation layer to prevent carrier compounding.
What are the advantages of TOPCon solar panel?
1. Higher efficiency: Prior to TOPCon solar cells, PERC solar cells were commonly used around the world. Research shows that the maximum theoretical efficiency of PERC solar panel is about 24%, while the efficiency of the new generation of TOPCon solar panel has exceeded 25%.
2. Stronger resistance: The advantage of TOPCon solar panel is mainly reflected in its excellent resistance to extreme weather, even in low temperature and other extreme weather can retain a certain working ability.
3. Strong low-light performance: TOPCon solar panel can still work efficiently in low-light conditions, which also allows it to work longer and store more power during the day.
4. Process: TOPCon solar panel are manufactured with essentially the same machines as the previous generation of PERC solar panel, which means that there is no need to rebuild a factory to manufacture TOPCon solar panel.
What are the disadvantages of TOPCon solar panel?
Higher cost: Compared to the previous generation of PERC solar panel, TOPCon solar panel add a large amount of silver. Silver is still a valuable commodity today, which makes the cost of TOPCon solar panel inevitably higher than the previous generation of solar panel.
What are the application prospects of TOPCon solar panel?
The performance of TOPCon solar panel is far better than the previous generation of PERC solar panel, although the market share of PERC solar panel is still higher than that of TOPCon solar panel, it is believed that with the gradual improvement of the manufacturing process of TOPCon solar panel, as well as the formation of the industrial chain, the market share of TOPCon solar panel will exceed that of the previous generation. It is only a matter of time before TOPCon solar panel overtake the market share of the previous generation of PERC solar panel; after all, TOPCon solar panel have been introduced in recent years, and the manufacturing process used is not so perfect, and it is believed that one day manufacturers will be able to use less silver to manufacture TOPCon solar panel, which will greatly reduce their costs and make TOPCon solar panel popular.
Summarize
TOPCon solar panel are the culmination of technological development and beat almost all solar panel in the market in terms of performance. So, if conditions permit, you can choose TOPCon solar panel.
