Adhesional shear strength and surface analysis of a PV module deployed in harsh coastal climate

被引:46
作者
Dhere, NG [1 ]
Raravikar, NR [1 ]
机构
[1] Florida Solar Energy Crt, Cocoa, FL 32922 USA
关键词
PV module durability; Adhesional strength;
D O I
10.1016/S0927-0248(00)00304-4
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Adhesional shear strength and chemical composition at the Si/EVA interface of samples extracted from a PV module manufactured by a major manufacturer using slow-cure EVA and deployed in the hot and humid climate at Cocoa, FL were studied. Precipitation of sodium from glass superstrate and ambient, and phosphorous from dopant glass reduced adhesional strength at Si/EVA interface to similar to 35% of that in new modules. Presence of tin at this interface has also been attributed to solder-bond corrosion by moisture and impurities Na and P. It is interesting to point out that in this case, corrosion has occurred prior to delamination. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:363 / 367
页数:5
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