The Role of Water on the Interfacial Adhesion in Si Solar Modules

被引:1
|
作者
Theut, Nicholas [1 ]
Mannodi-Kanakkithodi, Arun [2 ]
Jeffries, April M. [1 ]
Kumar, Rishi E. [3 ]
Von Gastrow, Guillaume [3 ]
Fenning, David [3 ]
Chan, Maria K. Y. [2 ]
Bertoni, Mariana, I [1 ]
机构
[1] Arizona State Univ, Fulton Sch Engn, Tempe, AZ 85281 USA
[2] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA
[3] Univ Calif San Diego, Dept Nanoengn, La Jolla, CA 92093 USA
来源
2021 IEEE 48TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2021年
关键词
delamination; adhesion; peel; water; DEGRADATION; METALLIZATION;
D O I
10.1109/PVSC43889.2021.9519053
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
Delamination of solar module interfaces often occurs in field-tested solar modules after decades of service due to environmental stressors such as humidity. As water diffuses into the module, failure mechanisms like corrosion and delamination are significantly affected. In the presence of water, the interfaces between EVA and the cell, glass, and backsheet all experience losses of adhesion exposing the module to accelerated degradation. Understanding the relation between interfacial adhesion and water content inside PV modules can help mitigate detrimental power losses. Water content measurements via short wave infrared reflectometry combined with 180 degrees peel tests were used to study and quantify the effect of water ingress and egress on adhesion. Changes in adhesion strength for different module interfaces are quantified, correlating spatial distribution of water content to adhesion for damp heat and dry heat exposed samples. After 1000 hours of damp heat exposure, decreases in adhesion strength of approximately 1 N/mm were noted for all interfaces.
引用
收藏
页码:2101 / 2103
页数:3
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