Micro-crystalline Silicon Technology

Huasun takes the lead in applying the doped μc-Si or doped μc-SiOx to mass production of HJT solar cell instead of doped α-Si to increase the light transmission performance and current density, and reduce the resistance, which raises the cell efficiency to 25%.

Higher Conversion Efficiency

HJT cell uses α-si thin-film as passivation materials to realize the one-dimensional transport of carriers and reduce the loss caused by the migration, which increases the open circuit voltage to 750mV and guarantees the conversion efficiency up to 24% at beginning, approaching PERC's limit.

More Energy Yield

The natural bifacial symmetrical structure of HJT cell makes the module bifaciality up to 95%. The power generation per watt of HJT cell is about 3% to 6% higher than that of PERC bifacial cell. In practical applications, the output gain from Huasun HJT bifacial modules can reach more than 30%.

Lower Degradation Rate

HJT cell is made of N-type wafer which does not have B-O bond, resulting in no LID effect, and ensuring the product durability and yield. TCO film on HJT cell is conductive, so the charge won't polarize on the surface, which can prevent the potential-induced attenuation, avoiding PID from the structure.

Lower Temperature Coefficient

The temperature coefficient of HJT cell is -0.26%/℃, which means the power output of HJT cell is more stable and the power loss is lower in the high temperature environment, generating about 3.9% more electricity than dual PERC cell.

Better Weak Light Performance

The minority carrier lifetime of N-type cell is high, leading to a better power generation ability in weak light condition, which is about 0.5% to 1% higher than that of PERC bifacial cell per watt.

Thinner Wafer Adapted

With the development of technology, the HJT cell can realize 100μm wafer application while ensuring the quality, and can be superimposed with busbar-free and shingled module to improve the efficiency and save the cost.

Ultra-low Carbon Footprint

Till the end of 2022, Huasun can get an estimated carbon footprint of HJT module manufacturing as low as 397g per watt, by applying and improving various methods to reduce the carbon emission during HJT solar cell processing.