In today's pursuit of green energy, N-type solar panels are gradually becoming the new favorite in the solar field due to their unique advantages. This article will delve into the outstanding performance and features of N-type solar panels from four aspects: structure, power generation principle, size selection, and attenuation characteristics.
The core of N-type solar panels lies in their unique N-type silicon wafer substrate. This structure not only includes an N-type silicon substrate but also cleverly deposits a layer of amorphous P-type doped silicon as the emitter on the front. Following it are the front passivation layer (such as an Al₂O₃ layer) and the front anti-reflective layer (such as an SiNx layer), effectively enhancing light absorption efficiency. The back side is designed with a tunnel oxide layer (such as SiO₂ film), polycrystalline silicon layer, and rear anti-reflective layer, with the rear metal electrode ensuring smooth current extraction. This precise design structure lays a solid foundation for the high-efficiency power generation of N-type solar panels.
The power generation principle of N-type solar panels is rooted in the "photovoltaic effect" of semiconductors. When sunlight shines on the N-type semiconductor, photons are absorbed and excite electron-hole pairs. Electrons, as the main carriers, form free electrons under the action of dopant elements (such as phosphorus, arsenic, gallium), enhancing conductivity. Subsequently, electrons and holes move towards the N-type and P-type semiconductors, respectively, forming a potential difference that drives the current and achieves the conversion of light energy to electrical energy.
In terms of size selection, N-type solar panels also exhibit flexibility and efficiency, with mass production conversion efficiency reaching over 22% and power up to 700W, far surpassing traditional modules. This not only increases the power generation per unit area but also reduces the number of modules required for installation, lowering overall costs.
Compared to batteries based on P-type silicon wafers, N-type solar panels perform excellently in resistance to attenuation. Over their entire lifecycle, N-type solar panels generate about 1.9%-2.9% more power per watt than bifacial PERC cells, ensuring long-term stable power output and bringing higher economic returns to investors.
With continuous technological advancement and gradual cost reduction, N-type solar panels are expected to become a main force in the future green energy field, making significant contributions to the global energy transition. In practical applications, reasonably selecting the size and installation angle of N-type solar panels will further optimize their performance and maximize energy utilization.
Sunrise Energy has an automated production workshop covering 35,000 square meters, producing market-leading ultra-multi-busbar N-type (TOPCON) high-efficiency modules, supporting various customized size requirements. The double-sided modules can achieve up to 30% rear side gain; the solar photovoltaic system covers residential, commercial, and industrial distributed and centralized photovoltaic power stations, offering thousands of solutions to help customers maximize their returns.
English
中文
