公开(公告)号：US20150372166A1

公开(公告)日：2015-12-24

申请号：US14838560

申请日：2015-08-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasufumi TSUNOMURA ,  Toshiaki BABA ,  Takayoshi SONE

IPC: H01L31/0236 ,  H01L31/0747

CPC classification number: H01L31/02363 ,  H01L31/0747 ,  Y02E10/50

Abstract: An embodiment of a solar cell is provided comprising a silicon substrate, on a first surface of which a texture structure including mountain portions and valley portions is formed, and an amorphous silicon layer provided on the first surface of the silicon substrate. The texture structure, in a cross section passing through the mountain portions and the valley portions, includes pairs of slant portions, each pair slanting to extend from a pair of neighboring ones of the mountain portions toward the valley portion therebetween while coming closer to each other. The valley portion located between the slant portions is in a round shape with a radius of curvature of 150 nm or smaller. The amorphous silicon layer includes an epitaxial growth area grown from the valley portion, the epitaxial growth area on the valley portion is thicker than that on a region other than the valley portion.

Abstract translation: 提供了一种太阳能电池的实施例，其包括硅衬底，其第一表面上形成有山形部分和谷部分的纹理结构，以及设置在硅衬底的第一表面上的非晶硅层。 在穿过山部和谷部的横截面中的纹理结构包括成对的倾斜部分，每对倾斜部分倾斜以从一对相邻的山部分朝向其间的谷部分延伸，同时彼此靠近 。 位于倾斜部之间的谷部为圆形，曲率半径为150nm以下。 非晶硅层包括从谷部生长的外延生长区域，谷部上的外延生长区域比除谷部以外的区域厚。

公开(公告)号：US20150228814A1

公开(公告)日：2015-08-13

申请号：US14692016

申请日：2015-04-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenta MATSUYAMA ,  Takayoshi SONE ,  Kazunori FUJITA

IPC: H01L31/0236 ,  H01L31/0376 ,  H01L31/0224

CPC classification number: H01L31/02363 ,  H01L31/022475 ,  H01L31/022483 ,  H01L31/03762 ,  H01L31/0747 ,  H01L31/1884 ,  Y02E10/50

Abstract: A solar cell is provided with: a semiconductor substrate upon which a textured structure is formed; and transparent conductive layers that are formed on the substrate, the thicknesses of which are substantially fixed in a trough part of the textured structure.

Abstract translation: 太阳能电池具有：形成纹理结构的半导体基板; 以及形成在基板上的透明导电层，其厚度基本上固定在纹理结构的槽部中。