Solar cell and fabricating process thereof
First Claim
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1. A solar cell comprising:
- a semiconductor substrate;
an emitter layer formed on at least one surface of said semiconductor substrate, wherein a p-n junction is formed between said emitter layer and said semiconductor substrate;
at least one emitter contact region formed on portions of said emitter layer and has the same type of dopant as said emitter layer, wherein said emitter contact region has a higher dopant concentration than said emitter layer; and
at least one first electrode coupled with said emitter contact region.
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Abstract
A solar cell includes a semiconductor substrate, an emitter layer, at least one emitter contact region and at least one first electrode. The emitter layer is formed on at least one surface of the semiconductor substrate. A p-n junction is formed between the emitter layer and the semiconductor substrate. The emitter contact region is formed on portions of the emitter layer and has the same type of dopant as the emitter layer. The emitter contact region has a higher dopant concentration than the emitter layer. The first electrode is coupled with the emitter contact region.
30 Citations
20 Claims
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1. A solar cell comprising:
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a semiconductor substrate; an emitter layer formed on at least one surface of said semiconductor substrate, wherein a p-n junction is formed between said emitter layer and said semiconductor substrate; at least one emitter contact region formed on portions of said emitter layer and has the same type of dopant as said emitter layer, wherein said emitter contact region has a higher dopant concentration than said emitter layer; and at least one first electrode coupled with said emitter contact region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A process of fabricating a solar cell, comprising steps of:
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(a) providing a semiconductor substrate; (b) forming an emitter layer on at least one surface of said semiconductor substrate and forming a p-n junction between said emitter layer and said semiconductor substrate; (c) forming at least one emitter contact region on portions of said emitter layer, wherein said emitter contact region has the same type of dopant as said emitter layer and said emitter contact region has a higher dopant concentration than said emitter layer; and (d) forming at least one first electrode above said emitter layer and coupled with said emitter contact region. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification