Solar cell and method for manufacturing the same
AssigneePanasonic Corporation
InventorsYasuhiro Hashimoto, Takayuki Negami, Takuya Satoh
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Abstract
It is an object of the present invention to provide a solar cell, and a method for manufacturing the same, that includes a layer having Zn, Mg, and O, and with which an increase in efficiency can be achieved. The solar cell includes a first electrode layer, a second electrode layer, a p-type semiconductor layer disposed between the first electrode layer and the second electrode layer, and a layer A disposed between the second electrode layer and the p-type semiconductor layer, the layer A includes Zn, Mg, O, and at least one element M selected from Ca, Sr, Ba, Al, In, and Ga, and photoelectromotive force is generated due to light that is incident from the second electrode layer side.
Claims7
A solar cell comprising a first electrode layer, a second electrode layer, a p-type semiconductor layer disposed between the first electrode layer and the second electrode layer, and a layer A disposed between the second electrode layer and the p-type semiconductor layer,
- wherein the layer A comprises Zn, Mg, O, and at least one element M selected from Ca, Sr, Ba, Al, In, and Ga;
- wherein a content of the element M in the layer A is in the range of 0.01 to 3 atom percent;
- wherein a ratio of atom numbers between Zn, Mg, and O comprised in the layer A satisfies an expression Zn:Mg:O=(1−x):x:1, where x is a numerical value that satisfies an expression 0.05≦×≦0.35;
- and
- wherein a photoelectromotive force is generated due to light that is incident from the second electrode layer side.
Dependencies are inferred from the claim text.