SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME

According to the present invention, a method for manufacturing a solar cell includes a step of preparing a semiconductor substrate; a step of forming a first layer including a first impurity of a first conductivity type in the semiconductor substrate; a step of forming an insulating layer on the fir...

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Bibliographic Details
Main Authors JUNG, IL HYOUNG, YANG, JU HONG, KIM, JIN AH, YANG, DO HWAN
Format Patent
LanguageEnglish
Korean
Published 28.01.2014
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:According to the present invention, a method for manufacturing a solar cell includes a step of preparing a semiconductor substrate; a step of forming a first layer including a first impurity of a first conductivity type in the semiconductor substrate; a step of forming an insulating layer on the first layer; and a step of forming a first electrode paste including a second impurity of the first conductivity type on the insulating layer; and a thermal process step of forming a first electrode by sintering the first electrode paste. In the thermal process step, a first impurity layer is formed while the first electrode penetrates the insulating layer. The first impurity layer has a first part of which doping concentration is higher than that of the first layer by diffusing the second impurity to the semiconductor substrate, and a second part of which doping concentration is lower than that of the first part.
Bibliography:Application Number: KR20120077830