US 2015/0083214 A1 · SOLAR CELL

Abstract

A solar cell includes a semiconductor substrate of first conductivity type, including first and second principal surfaces; a region of the first conductivity type, including a semiconductor layer structure of the first conductivity type provided on the first principal surface; and a region of an second conductivity type, including a semiconductor layer structure of the second conductivity type provided on the first principal surface. The semiconductor layer structure of the first conductivity type is formed extending into the region of the second conductivity type. Thereby the solar cell is provided with a stack region where the semiconductor layer structure of the second conductivity type is formed on the semiconductor layer structure of the first conductivity type.

Claims20

Dependent claims

A solar cell comprising:

a semiconductor substrate of a first conductivity type, including first and second principal surfaces;
a region of the first conductivity type, including a semiconductor layer structure of the first conductivity type provided on the first principal surface;
and
a region of a second conductivity type, including a semiconductor layer structure of the second conductivity type provided on the first principal surface, wherein
the semiconductor layer structure of the first conductivity type is formed extending into the region of the second conductivity type, and
the solar cell is provided with a stack region where the semiconductor layer structure of the second conductivity type is formed on the semiconductor layer structure of the first conductivity type.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/493,393Filed 23 Sep 2014

Priority

JP 2013-19696324 Sep 2013

Published

26 Mar 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H10F 77/148
Shape of semiconductor bodies; Shapes, relative sizes or dispositions of semiconductor regions within semiconductor bodies: shapes of potential…
H10F 10/166
The heterojunctions being Group IV-IV heterojunctions, e.g. Si/Ge, SiGe/Si or Si/SiC photovoltaic cells: the Group IV-IV heterojunctions being…
H10F 71/103
The devices comprising amorphous semiconductor material: including only Group IV materials
H10F 77/219
For photovoltaic cells: arrangements for electrodes of back-contact photovoltaic cells

Solar cell

Life of this patent

Solar cell

Life of this patent

Abstract

Claims20