PROBLEM TO BE SOLVED: To provide a solar cell with an excellent conversion efficiency having passivation films whose constituent elements are the same but their composition ratio is different formed on two front and rear faces, respectively, of conductive type layer.
SOLUTION: A solar cell 10 comprises at least the followings: a photoelectric conversion part which has a first conductive type layer 1 on one side and a second conductive type layer 2 on the other side; a first passivation layer 3 arranged so as to cover the first conductive type layer 1; a second passivation layer 4 arranged so as to cover the second conductive type layer 2; a first electrode 5; and a second electrode 6. Both passivation layers 3 and 4 are constituted by the same elements including: 2 elements selected from metal elements and semimetal elements; and oxygen and/or nitrogen. A composition ratio of the 2 elements selected from the metal elements and semimetal elements are different between the passivation layers 3 and 4.
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