| CPC H10F 77/215 (2025.01) [H10F 19/902 (2025.01)] | 19 Claims |
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1. A solar cell, comprising:
a substrate having electrode regions and non-electrode regions that are alternatingly arranged in a first direction, wherein the non-electrode regions include connection regions, first regions, and second regions, wherein each respective non-electrode region of the non-electrode regions includes at least one connection region of the connection regions, at least one first region of the first regions, and at least one second region of the second regions, each respective first region is abutted on one or more sides by one or more second regions, and a respective connection region of at least one of the connection regions extends between two adjacent electrode regions and has two opposite sides abutting respective ones of the two adjacent electrode regions and connected to the respective ones of the two adjacent electrode regions, wherein the respective connection region includes a plurality of first connection regions and a plurality of second connection regions, wherein a respective second connection region has an extension direction intersecting with an extension direction of each of the plurality of first connection regions, and a respective first connection region of the plurality of first connection regions is connected with the two adjacent electrode regions on two opposite sides of the respective first connection region in the first direction, wherein the respective first connection region has a width in a range of 50 μm to 800 μm in a second direction, and the respective second connection region has a width in a range of 20 μm to 600 μm in the first direction;
a dielectric layer formed over the electrode regions, the second regions, and the connection regions, but not over the first regions, wherein a respective portion of the dielectric layer is over a corresponding region of the electrode regions, the second regions, and the connection regions;
a doped conductive layer formed over the dielectric layer, wherein a respective portion of the doped conductive layer is over a corresponding portion of the dielectric layer;
a plurality of electrodes, wherein a respective electrode of the plurality of electrodes extends in the second direction and is formed over and in electrical contact with a portion of the doped conductive layer in a corresponding electrode region of the plurality of electrode regions; and
a passivation layer formed over the first regions and over portions of the doped conductive layer not under any of the plurality of electrodes.
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