| 摘要 |
A photovoltaic device (100) comprising: a substrate (110) including a light-receiving surface and a back surface; a base region (140) situated over the back surface of the substrate (110); an emitter region (150) situated over the back surface of the substrate (110); a first electrode (160) situated over the base region (140) and having a first electrode width M1 measured in a first direction; and a second electrode (170) situated over the emitter region (150) and having a second electrode width M2 measured in the said first direction; characterised in that 0.3 ‰¤ C ‰¤ 3.4, where C = M1/M2. |
