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Well, it’s all about the silicon. Silicon is the most commonly used material for solar cells, and how it’s doped—or infused with certain elements—determines whether it’s N-Type or P-Type. Created with negatively-doped silicon, N-Type panels come with extra electrons.
To summarize, the main aspect that makes P-type and N-type solar cells different is the doping used for the bulk region and for the emitter.
When phosphorous is used to negatively dope the bulk region this creates an N-type solar cell, meanwhile when boron is used to positively dope the crystalline silicon in the bulk region, this makes a P-type solar panel. How did P-type solar panels become the norm in the solar industry?
Typically, P-type solar panels can be manufactured with techniques like the PERC (passivated emitter rear contact) technology and the Al-BSF (aluminum back surface field) technology. When assessing N-type vs. P-type solar panels, P-type PV modules tend to have the following advantages and disadvantages: Lower production costs.
The emitter layer for the cell is negatively doped (N-type), featuring a doping density of 10 19 cm -3 and a thickness of 0.5μm. N-type solar panels are an alternative with rising popularity due to their several advantages over the P-type solar panel.
Quality often comes at a price, and in this scenario, N-Type panels are the premium pick. The advanced technology and materials used in N-Type panels make them more expensive. P-Type panels, on the other hand, are the economical choice.
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