Solar cells, multi-junction solar cells, solar cell modules and photovoltaic systems

摘要

To provide a solar battery, multi-junction type solar battery, solar battery module and photovoltaic power generation system, capable of achieving high conversion efficiency.SOLUTION: A solar battery 100 includes: a first electrode 2, a second electrode 5, a photoelectric conversion layer 3 provided between the first electrode 2 and the second electrode 5, and a plurality of insulators 6 arranged on a surface of the first electrode 2 opposing to the second electrode 5. The two optional adjacent ones of the plurality of insulators 6 are arranged, sandwiching a cavity 7.SELECTED DRAWING: Figure 1