The energy generated by solar power generation is the main pillar of sustainable energy supply. Intelligent energy conversion for renewable energy brings opportunities and challenges to the power generation industry. High efficiency photovoltaic cells emerge as the times require. Modern storage and battery technology will greatly promote the use of environmental protection energy.

Compared with conventional solar cells, hit cells have higher power generation efficiency. Hit is the abbreviation of heterojunction with intrinsic thin layer, which means intrinsic thin film heterojunction. Hit solar cell is composed of P / I type a-Si film (5 ~ 10nm thick) on the side of light irradiation and I / N type a-Si film (5 ~ 10nm thick) on the back side of hit solar cell.

The magnetron sputtering coating produced by HCVAC can be coated with transparent conductive layer on the surface of the battery, so that the charge will not produce polarization phenomenon and PID phenomenon. The processing temperature is lower than 250 ℃, which avoids the high-temperature diffusion process with low production efficiency and high cost. Moreover, the low-temperature process makes the optical band gap, deposition rate, absorption coefficient and hydrogen content of a-Si film be refined Accurate control can also avoid the thermal stress and other adverse effects caused by high temperature. Due to the low process temperature, the upper and lower surface structure is blended, no mechanical stress is produced, and the thin molding can be realized smoothly.