Solar cell and method of manufacturing the same
AssigneeLG Electronics Inc.
InventorsKwangsun Ji, Sehwon Ahn
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Abstract
A solar cell and a method of manufacturing the same are disclosed. The solar cell includes a semiconductor substrate, a first semiconductor region positioned at a front surface or a back surface of the semiconductor substrate and doped with impurities of a first conductive type, a first electrode connected to the first semiconductor region, and a second electrode connected to the back surface of the semiconductor substrate. The second electrode is formed of a metal foil, and an air gap is formed between the second electrode formed of the metal foil and the back surface of the semiconductor substrate.
Claims17
A solar cell comprising:
- a semiconductor substrate;
- a first semiconductor region positioned on a back surface of the semiconductor substrate and doped with impurities of a first conductive type;
- a second semiconductor region positioned on the back surface of the semiconductor substrate and doped with impurities of a second conductive type;
- a back passivation layer on the back surface of the semiconductor substrate, at least a portion of the back passivation layer overlapping with the first and second semiconductor regions;
- a first electrode connected to the first semiconductor region;
- and
- a second electrode connected to the second semiconductor region,
- wherein the second electrode is formed of a metal foil, and an air gap is formed between the second electrode formed of the metal foil and a back surface of the second semiconductor region.
Dependencies are inferred from the claim text.