REAR SURFACE SEALING METHOD OF THIN-FILM SOLAR CELL

摘要

PROBLEM TO BE SOLVED: To provide a reliable rear-surface sealing method of a thin-film solar cell. SOLUTION: A laminated body is provided in which a junction resin sheet 4 and a sealing glass plate 5 are sequentially stacked on the rear surface of the thin-film solar cell which is formed on a glass substrate 1. The laminated body is placed on a hot plate 14 of a vacuum laminator 100 to vacuum-evacuate the laminator. And then the sealing glass plate 5 is pressurized at 0.02-0.08 MPa using a diaphragm 12b in the laminator 100 after the junction resin sheet 4 is melted. The laminated body is moved from the laminator 100 to a curing oven before the gel ratio of the molten junction resin 4 reaches 50%, where the junction resin 4 is entirely cured.