| 摘要 |
PROBLEM TO BE SOLVED: To enhance photoelectric conversion efficiency of a CIGS-based solar battery by providing a glass sheet capable of rationalizing distribution of alkali ions even when reducing deposition temperature of the CIGS film and rationalizing crystal quality of the CIGS film.SOLUTION: The glass sheet for solar battery contains, by mass%, SiOof 50 to 80%, AlOof 0 to 30%, BOof 0 to 20%, MgO of 0 to 20%, CaO of 0 to 20%, NaO of 4.4 to 30%, KO of 0 to 20%, ZrOof 0 to 5% as glass composition.SELECTED DRAWING: None |
