公开(公告)号：US20150040977A1

公开(公告)日：2015-02-12

申请号：US14388038

申请日：2013-02-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Karnav D. Kanuga ,  Kevin M. Hamer ,  Thomas J. Blong

IPC: H01L31/048 ,  B32B37/18

CPC classification number: H01L31/0481 ,  B32B7/12 ,  B32B27/08 ,  B32B27/20 ,  B32B27/304 ,  B32B27/32 ,  B32B27/322 ,  B32B27/36 ,  B32B37/182 ,  B32B2250/24 ,  B32B2264/102 ,  B32B2307/4026 ,  B32B2307/704 ,  B32B2307/7246 ,  B32B2457/00 ,  B32B2457/12 ,  H01L31/049 ,  Y02E10/50 ,  Y10T156/10

Abstract: This disclosure generally relates to films capable of use in photovoltaic modules, to films, to methods of use and manufacture of these films, and to photovoltaic cells and/or modules including these films. One exemplary embodiment of such a film is a barrier layer having a moisture vapor transmission rate of less than 3.0 g/m2-day, wherein the barrier layer includes a polyethylene terephthalate having an apparent crystal size of less than 65 angstroms. Another exemplary embodiment of such a film is a multilayer film for use as a backsheet in a photovoltaic module including: a first layer including a fluoropolymer; a second layer including a polyethylene terephthalate having an apparent crystal size of less than 65 angstroms; and a third layer including an olefinic polymer. The first layer and the third layer are bonded to opposing major surfaces of the second layer.

Abstract translation: 本公开一般涉及能够用于光伏模块，薄膜，这些薄膜的使用和制造方法以及包括这些薄膜的光伏电池和/或模块的薄膜。 这种膜的一个示例性实施方案是具有小于3.0g / m 2·天的湿气透过率的阻挡层，其中阻挡层包括具有小于65埃的表观晶体尺寸的聚对苯二甲酸乙二醇酯。 这种膜的另一个示例性实施方案是用作光伏模块中的底片的多层膜，包括：包含含氟聚合物的第一层; 第二层包括具有小于65埃的表观晶体尺寸的聚对苯二甲酸乙二醇酯; 和包含烯烃聚合物的第三层。 第一层和第三层结合到第二层的相对的主表面。