Lg Electronics Inc.

Myungjun Shin

Youngwook Kim

Seongeun Lee

Minho Choi

Haejong Cho

Kyoungsoo Lee

Jiweon Jeong

Youngsung Yang

Gyeayoung Kwag

Taeyoung Kwon

Sungyeon Cho

Sungbong Ma

A method for manufacturing asolar cell includes texturing a front surface of a semiconductor substrate having a first conductive type dopant by using a dry etching method, forming an emitter layer by ion-implanting a second conductive type dopant into the front surface of the semiconductor substrate, forming a back passivation film on a back surface of the semiconductor substrate; and forming a first electrode electrically connected to the emitter layer and a second electrode being in partial contact with the back surface of the semiconductor substrate.

Solar cell and method for manufacturing the same

A solar cell module includes a plurality of solar cells each including a substrate, an emitter region positioned at a back surface of the substrate, first electrodes electrically connected to the emitter region, second electrodes electrically connected to the substrate, a first current collector positioned at ends of the first electrodes, and a second current collector at ends of the second electrodes, and a first connector connecting a first current collector of a first solar cell of the plurality of solar cells to a second current collector of a second solar cell adjacent to the first solar cell. The first current collector of the first solar cell and the second current collector of the second solar cell each have a different polarity.

Solar cell module

A method for manufacturing a solar cell includes texturing a front surface of a semiconductor substrate having a first conductive type dopant by using a dry etching method, forming an emitter layer by ion-implanting a second conductive type dopant into the front surface of the semiconductor substrate, forming a back passivation film on a back surface of the semiconductor substrate; and forming a first electrode electrically connected to the emitter layer and a second electrode being in partial contact with the back surface of the semiconductor substrate.

A solar cell includes a semiconductor substrate, an emitter region positioned at the semiconductor substrate, a first electrode which is positioned on the semiconductor substrate and is connected to the emitter region, a second electrode which is positioned on the semiconductor substrate and is connected to the semiconductor substrate, and a second electrode current collector which is positioned on the semiconductor substrate and is connected to the second electrode. An overlap distance between the second electrode and the second electrode current collector in a first direction corresponding to an extension direction of a conductive film positioned on the second electrode current collector is less than an overlap distance between the second electrode and the second electrode current collector in a second direction crossing the first direction.

Solar cell and solar cell module

A solar cell module includes a plurality of solar cells each including a substrate, an emitter region positioned at a back surface of the substrate, first electrodes electrically connected to the emitter region, second electrodes electrically connected to the substrate, a first current collector connecting the first electrodes, and a second current collector connecting the second electrodes, and a first connector connecting a first current collector of a first solar cell of the plurality of solar cells to a second current collector of a second solar cell adjacent to the first solar cell. The first current collector of the first solar cell and the second current collector of the second solar cell have a different polarity.

A solar cell, a solar cell manufacturing device, and a method for manufacturing the solar cell are discussed. The solar cell manufacturing device includes a chamber; an ion implantation unit configured to implant ions into a substrate inside the chamber and a mask positioned between the ion implantation unit and the substrate. The mask includes a first opening to form a lightly doped region having a first concentration at one surface of the substrate, a second opening to form a heavily doped region having a second concentration higher than the first concentration at the one surface of the substrate, and at least one connector formed to cross the second opening. The second opening includes finger openings formed in a first direction, and bus openings formed in a second direction crossing the first direction.

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Seoul, South Korea

Myungjun Shin