Patent ID: 11949031
Assignee: TONGWEI SOLAR (CHENGDU) CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. The preparation method for a p-type bifacial solar cell with partial rear surface field passivation according to claim 1, wherein in step S4, when preparing the front-surface silicon nitride antireflection layer, a PECVD method is used, wherein a nitrogen source is nitric oxide, and a plasma power density is 50 mW/cm2-250 mW/cm2, and in step S6, when preparing the back-surface silicon nitride antireflection layer, the PECVD method is used, wherein a nitrogen source is nitric oxide, and a plasma power density is 50 mW/cm2-250 mW/cm2.