TOPCon N Type Technology - 13-Year Experiences in Solar Panels

Solar cell TOPCon Type N Technology
Type N Bifacial Solar Cells
High conversion efficiency with high reliability
Uniform cell performance with stable process control
Both sides can generate electricity
Low mismatch of cell performance during encapsulation
Excellent power generation performance under low irradiation conditions
Low hot spot effect


Type N Bifacial Solar Modules
Double-sided modules combine leading NTOPCon, 9BB and half cell technology.
The N-type material has zero LID / LeTID risks and makes the modules more reliable, more bi-ease, higher efficiency, lower temperature coefficient and longer life.
Number of cells: 120pcs (12 * 10)
Maximum efficiency （%）: 21.03%
Operating temperature （℃）: -40 ℃ ~ + 85 ℃
Maximum System Voltage (V): 1500V (IEC)
Temperature coefficient of Pmax: -0.32% / ℃
Nominal Operating Cell Temperature (NOCT): 42 ± 2 ℃

No Light Induced Degradation
TOPCon is a N-type silicon substrate battery. Phosphorus doped N-type crystalline silicon contains extremely low boron content, which weakens the boron-oxygen influence.

N-Type Bifacial Solar Cell Structure Chart


Process Flow Diagram of Type N Double Sided Solar Cell