Why HJT?

More Power Conversion Efficiency

HJT solar cell uses amorphous silicon thin films as passivation materials to reduce the loss of minority carriers lifetime in contact area, which could increase the open circuit voltage of HJT cells to 750mV and guarantee the power conversion efficiency up to 26.00%

Thinner Wafer Adapted

The manufacturing process of HJT solar cells is simpli￾fied and at a lower temperature compared with that of conventional solar cells. Its natural bifacial symmetrical structure reduces the mechanical stress in cell production, which enables the production of thinner wafers (≤120um).

Higher Bifaciality

With a natural bifacial symmetrical structure and a bifaciality of more than 95%, HJT cells can better adapt to different application scenarios and gain more power output.

Extreme low temperature coefficient

with conventional cells, HJT solar
cells have a lower temperature coefficient
(-0.24%/°C), which ensure more stable power output at high temperature and high irradiation areas. When using modules with the same power, the daily power output of HJT solar cells is 6% more than that of PERC cells and 3% more than that of Topcon cells.

Lower degradation rate

Lower degradation raHJT solar cells are made of N type silicon wafer, which does not have B-O bound so as to avoid LID effect, guaranteeing long term durability.
With anti-reflection and protective layers, TCO film is conductive, so the charge won’t polarize on the surface, avoiding PID from the structure

Combination with Future Technology

Due to their structure, HJT cells are very
suitable to use as substrate to stack with perovskite cells. The combination of these two technologies is considered to be the most promising. Simulations show that the conversion efficiency of the laminated cells can reach more than 35%.