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US 2009/0260684 A1Published application
Solar cell, method of forming emitter layer of solar cell, and method of manufacturing solar cell
AssigneeLG Electronics Inc.
InventorJaeSung YOU
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Abstract
A method for forming emitter layer of a solar cell includes preparing a substrate including a first impurity of a first conductive type, diffusing a second impurity of a second conductive type opposite to the first conductive type in the substrate to form a first emitter portion of the emitter layer in the substrate, and selectively heating a portion of the first emitter portion, which corresponds to a position for forming at least one electrode, to form a second emitter portion.
Claims33
A method for forming an emitter layer for a solar cell, the method comprising:
- preparing a substrate including a first impurity of a first conductive type;
- diffusing a second impurity of a second conductive type opposite to the first conductive type in the substrate to form a first emitter portion of the emitter layer in the substrate;
- and
- selectively heating a portion of the first emitter portion, which corresponds to a position for forming at least one electrode, to form a second emitter portion.
1 more element
A solar cell, comprising:
- a substrate of a first conductive type;
- an emitter layer that is positioned on the substrate and is a second conductive type that is opposite to the first conductive type;
- first electrodes that are connected to the emitter layer;
- and
- a second electrode that is connected to the substrate,
- wherein the emitter layer comprises a first emitter portion and a second emitter portion,
- the first electrodes comprise a finger electrode, and a bus electrode intersecting and connected to the finger electrode, and
- the first emitter portion and the second emitter portion are positioned under the bus electrode.
5 more elements
Dependencies are inferred from the claim text.