Tunneling-junction solar cell with copper grid for concentrated photovoltaic application
First Claim
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1. A solar cell, comprising:
- a crystalline silicon base layer;
a first dielectric quantum-tunneling-barrier layer in direct contact with a first side of the base layer;
a first doped silicon layer having a band gap greater than a band gap of the base layer and positioned adjacent to the first dielectric quantum-tunneling-barrier layer;
a first electrode electrically coupled to the first doped silicon layer;
a second dielectric quantum-tunneling-barrier layer in direct contact with a second side of the base layer;
a second doped silicon layer having a band gap greater than the band gap of the base layer and positioned adjacent to the second dielectric quantum-tunneling-barrier layer; and
a second electrode electrically coupled to the second doped silicon layer.
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Abstract
One embodiment of the present invention provides a photovoltaic module. The photovoltaic module includes an optical concentrator and a tunneling-junction solar cell. The tunneling-junction solar cell includes a base layer, a quantum-tunneling-barrier (QTB) layer situated above the base layer, an emitter layer, a front-side electrode, and a back-side electrode.
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Citations
10 Claims
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1. A solar cell, comprising:
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a crystalline silicon base layer; a first dielectric quantum-tunneling-barrier layer in direct contact with a first side of the base layer; a first doped silicon layer having a band gap greater than a band gap of the base layer and positioned adjacent to the first dielectric quantum-tunneling-barrier layer; a first electrode electrically coupled to the first doped silicon layer; a second dielectric quantum-tunneling-barrier layer in direct contact with a second side of the base layer; a second doped silicon layer having a band gap greater than the band gap of the base layer and positioned adjacent to the second dielectric quantum-tunneling-barrier layer; and a second electrode electrically coupled to the second doped silicon layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A photovoltaic module, comprising:
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an optical concentrator; and a solar cell, which comprises; a crystalline silicon base layer; a first dielectric quantum-tunneling-barrier layer in direct contact with a first side of the base layer; a first doped silicon layer having a band gap greater than a band gap of the base layer and positioned adjacent to the first dielectric quantum-tunneling-barrier layer; a first electrode electrically coupled to the first doped silicon layer; a second dielectric quantum-tunneling-barrier layer in direct contact with a second side of the base layer; a second doped silicon layer having a band gap greater than the band gap of the base layer and positioned adjacent to the second dielectric quantum-tunneling-barrier layer; and a second electrode electrically coupled to the second doped silicon layer.
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Specification