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US 9,520,517 B2Granted
Solar cell
AssigneeLG Electronics Inc.
InventorsHyunjin Yang, Heonmin Lee, Junghoon Choi, Kwangsun Ji
Life of this patent
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Abstract
A solar cell including a non-amorphous semiconductor substrate of a first conductive type; at least a first semiconductor layer on the non-amorphous semiconductor substrate, the first semiconductor layer including a portion that is amorphous and a plurality of portions having crystal lumps, so that the plurality of portions having the crystal lumps are distributed in the first semiconductor layer; a first electrode on the semiconductor substrate; and a second electrode on the semiconductor substrate.
Claims8
A solar cell, comprising:
- a single crystalline silicon substrate of a first conductive type;
- an emitter layer of a second conductive type opposite the first conductive type, the emitter layer forming a hetero junction with the single crystalline silicon substrate and including a first crystalline portion;
- a back surface field layer of the first conductive type, the back surface field layer forming a hetero junction with the single crystalline silicon substrate and including a second crystalline portion;
- a first electrode portion on the emitter layer;
- and
- a second electrode portion on the back surface field layer,
- wherein the back surface field layer has a crystallinity greater than a crystallinity of the emitter layer,
- wherein the emitter layer and the back surface field layer are on a back surface of the single crystalline silicon substrate and are spaced apart from each other, and
- wherein a first passivation layer is located on the back surface of the single crystalline silicon substrate between the emitter layer and the back surface field layer and is not located between the emitter layer and the back surface of the single crystalline silicon substrate and between the back surface field layer and the back surface of the single crystalline silicon substrate.
6 more elements
Dependencies are inferred from the claim text.