| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photoelectric conversion element improving conversion efficiency, and further to provide a solar cell. <P>SOLUTION: According to one embodiment, there is provided a photoelectric conversion element comprising: a first electrode having optical transparency; a second electrode; and a light absorption layer. The light absorption layer is provided between the first electrode and the second electrode. The light absorption layer contains a chemical compound semiconductor that contains a first element of the 11th group elements and a second element of the 16th group elements and has a chalcopyrite structure or a Sutanaito structure. The light absorption layer includes a p-type portion and an n-type portion. The n-type portion is provided between the p-type portion and the first electrode. The n-type portion forms a p-n homojunction with the p-type portion. The n-type portion contains dopant. The dopant is an element having a formal charge Vb obtained by a Bond Valence Sum calculation not less than 1.60 and not greater than 2.83. <P>COPYRIGHT: (C)2013,JPO&INPIT |
