Patent ID: 11949038
Assignee: ZHEJIANG JINKO SOLAR CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A solar cell, comprising:
a silicon substrate having a front surface and a back surface arranged opposite to each other;
P-type conductive regions and N-type conductive regions alternately arranged on the back surface of the silicon substrate;
front surface field regions located on the front surface of the silicon substrate and spaced from each other, wherein the front surface field regions each corresponds to one of the P-type conductive regions or one of the N-type conductive regions;
at least one front passivation layer located on the front surface of the silicon substrate; and
at least one back passivation layer located on surfaces of the P-type conductive regions and N-type conductive regions,
wherein a total area of the front surface field regions accounts for 45% to 60% of an area of the front surface of the silicon substrate.