Solar cell and method of manufacturing the same
AssigneeSanyo Electric Co., Ltd.
InventorsHiroki OHBO, Takahiro MISHIMA
Life of this patent
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Abstract
Provided is a solar cell with improved photoelectric conversion efficiency. The solar cell includes a photoelectric conversion body and first and second electrodes. The photoelectric conversion body includes a substrate made of semiconductor material. The first and second electrodes are disposed at intervals on one main surface of the photoelectric conversion body. Terraces each formed of a crystal plane are provided on a main surface of the substrate on the one main surface side of the photoelectric conversion body. At least one of the terraces exists between the first electrode and the second electrode.
Claims10
A solar cell comprising:
- a photoelectric conversion body including a substrate made of semiconductor material;
- and
- first and second electrodes disposed at an interval on one main surface of the photoelectric conversion body, wherein
- a main surface of the substrate on the one main surface side of the photoelectric conversion body is provided with terraces each formed of a crystal plane, and
- at least one of the terraces exists between the first electrode and the second electrode.
A method of manufacturing a solar cell including:
- a photoelectric conversion body including a substrate made of semiconductor material;
- and first and second electrodes disposed at an interval on one main surface of the photoelectric conversion body, the method comprising:
- forming terraces each formed of a crystal plane, on a main surface of the substrate on the one main surface side of the photoelectric conversion body by isotropically etching and then anisotropically etching the main surface of the substrate;
- and
- forming the first and second electrodes on the one main surface of the photoelectric conversion body at such an interval that at least one of the terraces exists between the first and second electrodes.
Dependencies are inferred from the claim text.