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Tunneling-junction solar cell with shallow counter doping layer in the substrate
Tunneling-junction solar cell with shallow counter doping layer in the substrate
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机译:衬底中具有浅反掺杂层的隧道结太阳能电池
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摘要
One embodiment of the present invention provides a tunneling-junction solar cell. The solar cell includes a base layer, an emitter layer situated adjacent to the shallow counter doping layer, a surface field layer situated adjacent to a side of the base layer opposite to the shallow counter doping layer, a front-side electrode, and a back-side electrode. The base layer includes a shallow counter doping layer having a conduction doping type that is opposite to a remainder of the base layer. The emitter layer has a bandgap that is wider than that of the base layer.
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