TOPCon (Tunnel Oxide Passivated Contact) solar cell is a high-efficiency solar cell technology, which has been improved on the basis of traditional PERC (Passivated Emitter and Rear Cell) solar cells. Following are the main features of TOPCon solar cells.

• High Efficiency

TOPCon solar cells have high energy conversion efficiency. By optimizing the structure and materials of the cell, non-radiative recombination and reverse current loss are reduced, enabling it to more efficiently convert sunlight into electricity.

• Bifacial performance

TOPCon solar cells have good bifacial performance, which means that it can absorb light efficiently on both the front side and the back side, which improves its energy capture capability. This allows TOPCon cells to perform better in applications with reflective backsheets such as glass or metal.

• Low heat loss

TOPCon cells reduce the loss of current through the junction, which may cause a certain degree of heat loss in traditional PERC cells. By optimizing the battery structure and current channel, TOPCon batteries have more stable performance under high temperature conditions and have a lower temperature coefficient.

• Optimized current channel

The design of TOPCon battery adopts high-level design and optimized current channel, which helps to reduce the non-radiative recombination of electrons. This can improve the fill factor and current output of the battery.

• High photoelectric conversion efficiency

The photoelectric conversion efficiency of TOPCon cells is relatively high, which means that it can generate more electricity under a given light condition. This enables the TOPCon battery to provide higher power output in a limited space.

• Package and system compatibility

TOPCon solar cells can be well adapted to conventional solar cell packages and system designs. As such, they can be compatible with existing solar modules and systems without requiring extensive system retrofits.

• Future development potential

TOPCon technology is still in a stage of continuous development and improvement. As the technology advances, it is expected that the efficiency of TOPCon solar cells will continue to increase and the cost may further decrease.

It is worth noting that TOPCon solar cell technology is a rapidly developing field, and different manufacturers may adopt slightly different designs and processes, so the performance and characteristics of cells may vary from manufacturer to manufacturer. Overall, however, TOPCon solar cells have significant advantages in terms of high efficiency, low temperature coefficient, and bifacial performance, making them a potential technology