SOLAR CELL ELEMENT AND METHOD OF MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a solar cell element having a structure in which photoelectric conversion efficiency of the solar cell element is improved.SOLUTION: A solar cell element 10 includes: a substrate 1 having a first main surface 1a and a second main surface 1b located on a side opposite to the first main surface 1a; a passivation film 4 arranged on the second main surface 1b of the substrate 1; a first electrode 8a which is in contact with the substrate 1 in a state where the passivation film 4 is penetrated at a large number of places and has zinc and aluminum as a conductive component; and a second electrode 8b which covers each of the passivation film 4 and the first electrode 8a and is in contact with the first electrode 8a.SELECTED DRAWING: Figure 3 【課題】 太陽電池素子の光電変換効率を向上させうる構造の太陽電池素子およびその製造方法を提供すること。【解決手段】 太陽電池素子１０は、第１主面１ａおよび第１主面１ａの反対側に位置する第２主面１ｂを有する基板１と、基板１の第２主面１ｂに配置されている、パッシベーション膜４と、パッシベーション膜４を多数箇所で貫通した状態で基板１に接している、亜鉛およびアルミニウムを導電成分として有する第１電極８ａと、パッシベーション膜４および第１電極８ａのそれぞれを覆っているとともに、第１電極８ａに接している第２電極８ｂと、を備えている。【選択図】 図３