Paint solar cell and its fabrication
First Claim
1. A solar cell comprising an active structure including:
- a voltage source having a p-type semiconductor layer structure and an n-type semiconductor layer structure in electrical contact with each other, at least one of the semiconductor layer structures being a paint layer structure comprising first-layer paint pigment particles dispersed in a first-layer binder, the first-layer paint pigment particles being selected from the group consisting of p-type pigment particles and n-type pigment particles; and
an electrically conductive contact structure having a first electrically conductive contact to a first one of the semiconductor layer structures, and a second electrically conductive contact to a second one of the semiconductor layer structures, at least one of the first electrically conductive contact and the second electrically conductive contact permitting light to pass therethrough to the voltage source.
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Accused Products
Abstract
A solar cell has an active structure including a paint voltage source having a first paint layer structure comprising p-type pigment particles dispersed in a first-layer binder, and a second paint layer structure comprising n-type pigment particles dispersed in a second-layer binder. The second paint layer structure is in electrical contact with the first paint layer structure. The active structure further includes an electrically conductive contact structure having a first electrically conductive contact to the first paint layer structure, and a second electrically conductive contact to the second paint layer structure. At least one of the first electrically conductive contact and the second electrically conductive contact permits light to pass therethrough to the paint voltage source. A capacitive paint layer may be included to store electrical charge produced by the active structure. The active structure may be affixed to a support.
32 Citations
19 Claims
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1. A solar cell comprising an active structure including:
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a voltage source having a p-type semiconductor layer structure and an n-type semiconductor layer structure in electrical contact with each other, at least one of the semiconductor layer structures being a paint layer structure comprising first-layer paint pigment particles dispersed in a first-layer binder, the first-layer paint pigment particles being selected from the group consisting of p-type pigment particles and n-type pigment particles; and
an electrically conductive contact structure having a first electrically conductive contact to a first one of the semiconductor layer structures, and a second electrically conductive contact to a second one of the semiconductor layer structures, at least one of the first electrically conductive contact and the second electrically conductive contact permitting light to pass therethrough to the voltage source. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A solar cell comprising an active structure including:
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a paint voltage source having a first paint layer structure comprising p-type pigment particles dispersed in a first-layer binder, and a second paint layer structure comprising n-type pigment particles dispersed in a second-layer binder, the second paint layer structure being in electrical contact with the first paint layer structure; and
an electrically conductive contact structure having a first electrically conductive contact to the first paint layer structure, and a second electrically conductive contact to the second paint layer structure, at least one of the first electrically conductive contact and the second electrically conductive contact permitting light to pass therethrough to the paint voltage source. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for preparing a solar cell, comprising the steps of
preparing a liquid first paint comprising p-type pigment particles, a first-paint binder, and a first paint liquid vehicle; -
preparing a liquid second paint comprising n-type pigment particles, a second-paint binder, and a second paint liquid vehicle; and
fabricating the solar cell by applying a first layer of the liquid first paint and at least partially drying the liquid first paint by removing the first paint liquid vehicle, to leave a solid first paint layer structure comprising the p-type pigment particles and the first-paint binder, applying a second layer of the liquid second paint and drying the liquid second paint by removing the second paint liquid vehicle, to leave a solid second paint layer structure comprising the n-type pigment particles and the second-paint binder, the second layer being in facing contact with the first layer, and forming a first electrically conductive contact to the solid first paint layer structure and a second electrically conductive contact to the solid second paint layer structure, at least one of the first electrically conductive contact and the second electrically conductive contact permitting light to pass therethrough.
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Specification