The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Aug. 28, 2015
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
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.