| Summary: | 碩士 === 元智大學 === 電機工程學系丙組 === 107 === This study explores the problems that solar modules face when they are placed in a sulfur-containing environment for a long time. Reliability has always been a concern of solar manufacturers. Today, a large number of outdoor solar power systems at home and abroad are only a few months away. A year or so later, I discovered that more and more dark lines like fingers are covered on the solar photovoltaic module, which seriously affects the appearance of the module. Such a dark vein like a snail crawling is called a snail mark. Phenomenon, experts in the field of solar photovoltaics continue to seek research questions.
In this paper, two solar modules with different packaging materials were used for outdoor power generation as the control group, and the corresponding packaging materials were used for the chemical experiment as the experimental group, and the two experimental methods were used for comparison.
Finally, the experimental results of the fluorine-free backsheet and the fluorine-containing backsheet module were consistent with the chemical experiment results of the package materials for the long-term outdoor exposure test. According to the results of the module experiment, the fluorinated back sheet did not find the snail mark after more than 100 days of outdoor illumination, and the snail trace produced by the fluorine-free back sheet after 70 days of outdoor illumination. As a result of chemical experiments, the growth rate of the fluorine-containing backsheet after chemical time test was less than 0.05%. However, the growth rate of the fluorine-free backsheet after chemical experiment was higher than 0.05%, and the growth rate of the EVA of the other two samples exceeded after the chemical experiment. 0.05% and confirmed that EVA can only resist the ability of weak acids. This experiment uses chemical rapid screening to reduce costs and effectively screen samples with less sensitive packaging materials.
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