PHOTOVOLTAICS WITH INTERFEROMETRIC BACK SIDE MASKS
First Claim
Patent Images
1. A photovoltaic device defining a front side on which light is incident and a back side opposite the front side, the photovoltaic device comprising:
- a photovoltaic active material;
a conductor on the back side of the photovoltaic material; and
an optical interferometric mask over the back side of the conductor.
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Abstract
An interferometric mask covers reflective conductors on the back side of a photovoltaic device. Such an interferometric mask may reduce reflections of incident light from the conductors. In various embodiments, the mask reduces reflections, so that a front and back electrode pattern appears black or similar in color to surrounding features of the device. In other embodiments, the mask may modulate reflections of light such that the electrode pattern matches a color in the visible spectrum.
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Citations
26 Claims
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1. A photovoltaic device defining a front side on which light is incident and a back side opposite the front side, the photovoltaic device comprising:
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a photovoltaic active material; a conductor on the back side of the photovoltaic material; and an optical interferometric mask over the back side of the conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A photovoltaic device comprising:
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means for generating an electrical current from incident light on a side of said means; front side means and back side means for conducting the generated electrical current; and means for interferometrically masking said back side conducting means from the incident side of the photovoltaic device.
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15. A method of manufacturing a photovoltaic device, comprising
providing a photovoltaic generator with a photovoltaic active layer, a front side conductor and a back side conductor, the front side conductor configured to allow light through the front side to the photovoltaic active layer; - and
forming a plurality of layers over the back side conductor of the photovoltaic generator to define an interferometric modulator configured to mask the back side conductor. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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- 24. A method of manufacturing a photovoltaic device having a front side on which light is incident and a back side opposite the front side, the method comprising forming an interferometric modulator configured to reduce visible reflections from the back side of the photovoltaic device.
Specification