Photovoltaic cell and manufacturing method thereof
AssigneeSharp Kabushiki Kaisha
InventorLiyuan Han
Life of this patent
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Abstract
A photovoltaic cell has a structure including a first electrode layer, a first photovoltaic layer, an electrically conductive layer, a second photovoltaic layer and a second electrode layer that are successively laminated, wherein the first photovoltaic layer is a semiconductor film containing a first colorant, the second photovoltaic layer is a semiconductor film containing a second colorant, the first colorant and the second colorant being different from each other, so that the first photovoltaic layer and the second photovoltaic layer have different photocurrent action spectra.
Claims12
A photovoltaic cell having a structure including a first electrode layer, a first photovoltaic layer, an electrically conductive layer, a second photovoltaic layer and a second electrode layer that are successively laminated
- wherein the first photovoltaic layer is a semiconductor film containing a first colorant, the second photovoltaic layer is a semiconductor film containing a second colorant, the first colorant and the second colorant being different from each other, so that the first photovoltaic layer and the second photovoltaic layer have different photocurrent action spectra, and
- wherein one of the semiconductor film of the first photovoltaic layer and the semiconductor film of the second photovoltaic layer is a p-type semiconductor film, and the other one is an n-type semiconductor film.
A method of manufacturing a photovoltaic cell, comprising the steps of:
- forming a first electrode layer on a first substrate;
- forming a first semiconductor film on the first substrate having the first electrode layer formed thereon;
- providing a first colorant to the first semiconductor film to form a first photovoltaic layer;
- forming a second electrode layer on a second substrate;
- forming a second semiconductor film on the second substrate having the second electrode layer formed thereon;
- providing a second colorant to the second semiconductor film to form a second photovoltaic layer;
- placing the first and second substrates so that the first photovoltaic layer and the second photovoltaic layer are faced to each other;
- and
- forming an electrically conductive layer between the first and second photovoltaic layers,
- wherein on of the semiconductor film of the first photovoltaic layer and the semiconductor film of the second photovoltaic layer is a p-type semiconductor film, and the other one is an n-type semiconductor film.
Dependencies are inferred from the claim text.