Diversity of solar cell Classified by structure: Classified by purpose: Homojunction solar cell Space solar cell Heterojunction solar cell Ground solar battery Schottky junction solar cell Light sensor Composite junction solar cell Liquid junction solar cells Classified by work method: Flat solar battery Concentrating solar cellClassified by structure: Homojunction solar cell Heterojunction solar cell Schottky junction solar cell Composite junction solar cell Liquid junction solar cells Diversity of solar cell Classified by purpose: Space solar cell Ground solar battery Light sensor Classified by work method: Flat solar battery Concentrating solar cell