| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plasticizer containing sheet comprising polyvinyl acetal as a base that has a low content of polyvinyl alcohol but at the same has a low creep tendency in a temperature range up to 100 degrees Celsius for production of a photovoltaic module. <P>SOLUTION: The photovoltaic module includes a laminate that includes: a transparent surface side protection member; a photovoltaic semiconductor layer; a plasticizer containing sheet comprising polyvinyl acetal as a base; and a rear side protection member, wherein the sheet is a laminate that contains polyvinyl acetal having less than 18 mass% of polyvinyl alcohol, and has a structure including a 3 mm float glass/a 0.76 mm sheet/a 3 mm float glass, and indicates a measured creep tendency of less than 5 mm at a temperature of 100 degrees Celsius in 7 days. <P>COPYRIGHT: (C)2011,JPO&INPIT |
